Frozen Strawberries, Blueberries, Rubus Berries and Mango: Inspection Methods
Oct 29, 2026
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Knowledge Center · Destination import guides
Use the product definition, sample state, calculation and decision rule together. We connect the reference questions and proposed methods to the actual specification, factory and order file you approve.
Strawberry · five inspection methods
Read the common sampling and release plan · Download the 10-page PDF and result sheet
Calyx and stalk material
Method D12-01 · proposed order procedure · reviewed 17 October 2026
Definition: Attached cap, loose cap/sepal, attached short stem and loose stem are separate USDA strawberry terms.
Sample state: As received frozen whole or sliced style; separate controlled-thaw aliquot for drip and character.
Sampling and quantity: Use P1: five sampling positions and separate 500 g analytical units for the proposed contract pilot; preserve pack/stratum identity and use a separate matched unit for destructive tests.
Inspection procedure: Keep whole and sliced SKUs apart. For contract pilot inspect whole fruit after controlled partial thaw sufficient to separate; classify attached cap, loose calyx/sepal, attached stem and loose stem per P07 photos. For sliced use separate weighed fruit ingredient after excluding packing medium.
Calculation and reporting: Whole: affected fruit count/total fruit count by class; sliced: botanical class g/total strawberry-ingredient g. If claiming USDA grade use §52.1991 official whole 32 oz or sliced 16 oz representative aliquot when original container exceeds 16 oz, and the exact defect scoring. Retain all five results. Pool only matching ratios by summed numerators and denominators; report non-ratio measurements separately.
Product control response: Processor de-capping and trimming setup. Record adjustment time and affected lot boundary; inspect pre/post adjustment material before deciding rework.
Records: Record lot/pack/harvest identity, sample weight and count, method revision, equipment calibration where used, photographs of each class, raw tally, operator/date and any rework/retest. Retain Harvest maturity, de-capper and slicer setup, freezer transfer and frozen-pack temperature history.
Hold and release: Reclean and resample if signed style-specific plant-matter criterion fails; follow official grade method only if grade is explicitly contracted. The actual processor QC identifies and holds the affected lot/stratum, documents any permitted rework and retest, and its authorized quality manager signs release only after the signed criterion and independent safety checks pass; GreenLand coordinates buyer review.
Source applicability: P07 USDA AMS Frozen Strawberries, 1 Feb 1958, §§52.1981-1992: whole versus sliced rules differ. §52.1987 color evaluates whole by count and slices by weight of strawberry ingredient; cut faces excluded. §52.1991 official thaw/analysis: up to 16 oz entire sample; above 16 oz, representative 16 oz sliced or 32 oz whole; do not replace with P1 for official grade.
Sources: P07: USDA AMS frozen strawberries, 1958 §§52.1987-1989
Broken and soft fruit
Method D12-02 · proposed order procedure · reviewed 17 October 2026
Definition: Crushed whole berry, physically separated fragment, intended slice and soft but intact berry are distinct.
Sample state: As received frozen whole or sliced style; separate controlled-thaw aliquot for drip and character.
Sampling and quantity: Use P1: five sampling positions and separate 500 g analytical units for the proposed contract pilot; preserve pack/stratum identity and use a separate matched unit for destructive tests.
Inspection procedure: Classify whole berries and slices separately while frozen, then use a separate covered thaw at 4±2°C to ice-free for soft-character assessment; do not count intended slices as damage.
Calculation and reporting: Whole affected berries/whole examined count; sliced damaged fruit g/total strawberry ingredient g; soft intact g separately. Apply P07 character/defect scoring only under official grade route. Retain all five results. Pool only matching ratios by summed numerators and denominators; report non-ratio measurements separately.
Product control response: Processor pack pressure/freezer-transfer investigation. Record adjustment time and affected lot boundary; inspect pre/post adjustment material before deciding rework.
Records: Record lot/pack/harvest identity, sample weight and count, method revision, equipment calibration where used, photographs of each class, raw tally, operator/date and any rework/retest. Retain Harvest maturity, de-capper and slicer setup, freezer transfer and frozen-pack temperature history.
Hold and release: Do not classify intended slices as damage; hold by signed whole/sliced defect and texture criteria. The actual processor QC identifies and holds the affected lot/stratum, documents any permitted rework and retest, and its authorized quality manager signs release only after the signed criterion and independent safety checks pass; GreenLand coordinates buyer review.
Source applicability: P07 USDA AMS Frozen Strawberries, 1 Feb 1958, §§52.1981-1992: whole versus sliced rules differ. §52.1987 color evaluates whole by count and slices by weight of strawberry ingredient; cut faces excluded. §52.1991 official thaw/analysis: up to 16 oz entire sample; above 16 oz, representative 16 oz sliced or 32 oz whole; do not replace with P1 for official grade.
Sources: P07: USDA AMS frozen strawberries, 1958 §§52.1987-1989
Colour and maturity
Method D12-03 · proposed order procedure · reviewed 17 October 2026
Definition: Characteristic outer red color must be judged differently for whole berries and slices; cut surfaces are excluded for slices.
Sample state: As received frozen whole or sliced style; separate controlled-thaw aliquot for drip and character.
Sampling and quantity: Use P1: five sampling positions and separate 500 g analytical units for the proposed contract pilot; preserve pack/stratum identity and use a separate matched unit for destructive tests.
Inspection procedure: Assess immediately after thawing until separable and free of ice crystals under P07 section 52.1985. For the A colour factor in section 52.1987(a), the overall mass must have the specified reasonably uniform characteristic pink/red colour. At least 85% of whole berries by count, or slices by strawberry-ingredient weight, must have good characteristic pink/red over practically the entire applicable surface; exclude slice cut faces. No more than 5% may fall into the specified low-colour/materially darkened remainder: less than four-fifths of the whole-berry surface or less than one-half of the slice outer surface, respectively.
Calculation and reporting: Whole: qualifying fruit count / all whole fruit count x100%; low-colour remainder count / same denominator x100%. Sliced: qualifying slice mass / all strawberry-ingredient mass x100%; low-colour remainder mass / same denominator x100%. Retain both tallies and overall-colour observation. These are selected A-factor conditions, not a whole USDA grade or import limit; the contracted grade requires all factors, limiting rules and official lot plan. P1 remains a separate contract pilot.
Product control response: Processor maturity sort; buyer signs style/grade or separate color reference. Record adjustment time and affected lot boundary; inspect pre/post adjustment material before deciding rework.
Records: Record lot/pack/harvest identity, sample weight and count, method revision, equipment calibration where used, photographs of each class, raw tally, operator/date and any rework/retest. Retain Harvest maturity, de-capper and slicer setup, freezer transfer and frozen-pack temperature history.
Hold and release: If USDA grade is invoked, apply its exact style/grade provisions; otherwise sign a buyer color band and release to it. The actual processor QC identifies and holds the affected lot/stratum, documents any permitted rework and retest, and its authorized quality manager signs release only after the signed criterion and independent safety checks pass; GreenLand coordinates buyer review.
Source applicability: P07 USDA AMS Frozen Strawberries, 1 Feb 1958, §§52.1981-1992: whole versus sliced rules differ. §52.1987 color evaluates whole by count and slices by weight of strawberry ingredient; cut faces excluded. §52.1991 official thaw/analysis: up to 16 oz entire sample; above 16 oz, representative 16 oz sliced or 32 oz whole; do not replace with P1 for official grade.
Sources: P07: USDA AMS frozen strawberries, 1958 §§52.1987-1989
Size distribution
Method D12-04 · proposed order procedure · reviewed 17 October 2026
Definition: Whole-fruit diameter, piece mass and sliced thickness describe different strawberry styles.
Sample state: As received frozen whole or sliced style; separate controlled-thaw aliquot for drip and character.
Sampling and quantity: Use P1: five sampling positions and separate 500 g analytical units for the proposed contract pilot; preserve pack/stratum identity and use a separate matched unit for destructive tests. Count every applicable intact unit in selected packs where feasible; record n and any mass not countable.
Inspection procedure: Measure every identifiable whole berry in 500 g pack frozen along greatest diameter without compressing; slices separately measure 100 systematic pieces per pack and report thickness.
Calculation and reporting: Whole off-band fruit/whole fruit count, diameter mm and mass g distributions; slice thickness n, median/range and mass of fines if contracted. Retain all five results. Pool only matching ratios by summed numerators and denominators; report non-ratio measurements separately.
Product control response: Processor size grader and slicer settings. Record adjustment time and affected lot boundary; inspect pre/post adjustment material before deciding rework.
Records: Record lot/pack/harvest identity, sample weight and count, method revision, equipment calibration where used, photographs of each class, raw tally, operator/date and any rework/retest. Retain Harvest maturity, de-capper and slicer setup, freezer transfer and frozen-pack temperature history.
Hold and release: Release against signed style-specific size/portion profile, not a single average. The actual processor QC identifies and holds the affected lot/stratum, documents any permitted rework and retest, and its authorized quality manager signs release only after the signed criterion and independent safety checks pass; GreenLand coordinates buyer review.
Source applicability: P07 USDA AMS Frozen Strawberries, 1 Feb 1958, §§52.1981-1992: whole versus sliced rules differ. §52.1987 color evaluates whole by count and slices by weight of strawberry ingredient; cut faces excluded. §52.1991 official thaw/analysis: up to 16 oz entire sample; above 16 oz, representative 16 oz sliced or 32 oz whole; do not replace with P1 for official grade.
Sources: P07: USDA AMS frozen strawberries, 1958 §§52.1987-1989
Thaw drip
Method D12-05 · proposed order procedure · reviewed 17 October 2026
Definition: Drip loss is liquid released after a defined thaw, not the same as broken-fruit mass.
Sample state: As received frozen whole or sliced style; separate controlled-thaw aliquot for drip and character.
Sampling and quantity: Use P1: five sampling positions and separate 500 g analytical units for the proposed contract pilot; preserve pack/stratum identity and use a separate matched unit for destructive tests.
Inspection procedure: Use matched separate 500 g sealed fruit portion in covered perforated insert over tared vessel; thaw at 4±2°C until ice-free, then gravity drain 2 min without pressing, weigh liquid and retained fruit immediately. Document pack media/syrup if any; use separate method for syrup packs.
Calculation and reporting: Free-drip g/initial frozen net fruit g ×100; report retained fruit g and mass balance, per pack and summed masses. Retain all five results. Pool only matching ratios by summed numerators and denominators; report non-ratio measurements separately.
Product control response: Processor QA examines freezing/handling and cold-store event logs. Record adjustment time and affected lot boundary; inspect pre/post adjustment material before deciding rework.
Records: Record lot/pack/harvest identity, sample weight and count, method revision, equipment calibration where used, photographs of each class, raw tally, operator/date and any rework/retest. Retain Harvest maturity, de-capper and slicer setup, freezer transfer and frozen-pack temperature history.
Hold and release: Use exact agreed thaw protocol and drip limit; do not infer microbial safety from low drip. The actual processor QC identifies and holds the affected lot/stratum, documents any permitted rework and retest, and its authorized quality manager signs release only after the signed criterion and independent safety checks pass; GreenLand coordinates buyer review.
Source applicability: P07 USDA AMS Frozen Strawberries, 1 Feb 1958, §§52.1981-1992: whole versus sliced rules differ. §52.1987 color evaluates whole by count and slices by weight of strawberry ingredient; cut faces excluded. §52.1991 official thaw/analysis: up to 16 oz entire sample; above 16 oz, representative 16 oz sliced or 32 oz whole; do not replace with P1 for official grade.
Sources: P07: USDA AMS frozen strawberries, 1958 §§52.1987-1989
Blueberry · five inspection methods
Read the common sampling and release plan · Download the 10-page PDF and result sheet
Cap stems
Method D13-01 · proposed order procedure · reviewed 17 October 2026
Definition: Short pedicel, large twig and attached cluster are distinct foreign-plant and presentation findings.
Sample state: As received frozen, cultivated or wild Vaccinium type; separate controlled-thaw aliquot if character checked.
Sampling and quantity: Use P1: five sampling positions and separate 500 g analytical units for the proposed contract pilot; preserve pack/stratum identity and use a separate matched unit for destructive tests. For P15 official blueberry grade, use its separate 16 oz net-weight equivalent and native/cultivated type rules.
Inspection procedure: Declare cultivated or native/wild. Inspect all berries in the frozen 500 g unit after sufficient ice-crystal clearance to handle; separate loose large stems/leaves, cap stems and clusters. Under P15 a cluster means ≥3 joined cap stems; retain per-container counts for wild-type allowance.
Calculation and reporting: Pilot: stemmed berry count/berries examined, cluster count per pack, loose botanical pieces/kg. Official P15: cap-stem condition plus large leaf/stem counts and wild/cultivated cluster numbers per 16 oz net weight equivalent; do not convert 16 oz to 1 kg. Retain all five results. Pool only matching ratios by summed numerators and denominators; report non-ratio measurements separately.
Product control response: Processor destemmer/sort and harvest branch-ingress record. Record adjustment time and affected lot boundary; inspect pre/post adjustment material before deciding rework.
Records: Record lot/pack/harvest identity, sample weight and count, method revision, equipment calibration where used, photographs of each class, raw tally, operator/date and any rework/retest. Retain Declared cultivated/wild type, destemmer/size-grader settings, optical-sort rejects and freezer-pack history.
Hold and release: Hold physical contaminants; compare small-stem categories to buyer or named USDA grade method only for correct berry type. The actual processor QC identifies and holds the affected lot/stratum, documents any permitted rework and retest, and its authorized quality manager signs release only after the signed criterion and independent safety checks pass; GreenLand coordinates buyer review.
Source applicability: P15 USDA AMS Frozen Blueberries effective 22 May 1957, corrected/reprinted 24 Apr 2026 (not a new grade). §§52.611-620 distinguish native/wild versus cultivated. §52.617 defect allowances per 16 oz net weight = 453.592 g, with type-specific cluster rules; §52.616 Grade A color permits at most 5% red-purple by count; §52.618 Grade A character permits at most 6% crushed/mushy/broken by weight. Those are selected-grade factors, not stand-alone purchase tolerances.
Sources: P15: USDA AMS frozen blueberries, 1957; corrected/reprinted 24 Apr 2026 §§52.611-618 · GL-BL: GreenLand blueberry product guide
Unripe and shrivelled fruit
Method D13-02 · proposed order procedure · reviewed 17 October 2026
Definition: Unripe berry differs from naturally lighter cultivar color; shrivel reflects dehydration, not ripeness alone.
Sample state: As received frozen, cultivated or wild Vaccinium type; separate controlled-thaw aliquot if character checked.
Sampling and quantity: Use P1: five sampling positions and separate 500 g analytical units for the proposed contract pilot; preserve pack/stratum identity and use a separate matched unit for destructive tests. For P15 official blueberry grade, use its separate 16 oz net-weight equivalent and native/cultivated type rules.
Inspection procedure: After ice-crystal clearance, classify red-purple, green/undercolored, undeveloped/mummified and shriveled-dry separately under signed type/cultivar photos. Cut doubtful berries only for supplemental assessment.
Calculation and reporting: Pilot separate count classes/total berries. P15 Grade A red-purple ≤5% by count is color factor; green/undeveloped are §52.617 defect counts per 16 oz, with combined/subset allowances. Do not label all red-purple unripe. Retain all five results. Pool only matching ratios by summed numerators and denominators; report non-ratio measurements separately.
Product control response: Processor maturity sort and storage dehydration review. Record adjustment time and affected lot boundary; inspect pre/post adjustment material before deciding rework.
Records: Record lot/pack/harvest identity, sample weight and count, method revision, equipment calibration where used, photographs of each class, raw tally, operator/date and any rework/retest. Retain Declared cultivated/wild type, destemmer/size-grader settings, optical-sort rejects and freezer-pack history.
Hold and release: Release by agreed type-specific profile; route borderline ripeness to a functional use only with buyer approval. The actual processor QC identifies and holds the affected lot/stratum, documents any permitted rework and retest, and its authorized quality manager signs release only after the signed criterion and independent safety checks pass; GreenLand coordinates buyer review.
Source applicability: P15 USDA AMS Frozen Blueberries effective 22 May 1957, corrected/reprinted 24 Apr 2026 (not a new grade). §§52.611-620 distinguish native/wild versus cultivated. §52.617 defect allowances per 16 oz net weight = 453.592 g, with type-specific cluster rules; §52.616 Grade A color permits at most 5% red-purple by count; §52.618 Grade A character permits at most 6% crushed/mushy/broken by weight. Those are selected-grade factors, not stand-alone purchase tolerances.
Sources: P15: USDA AMS frozen blueberries, 1957; corrected/reprinted 24 Apr 2026 §§52.611-618 · GL-BL: GreenLand blueberry product guide
Split fruit and juice clumps
Method D13-03 · proposed order procedure · reviewed 17 October 2026
Definition: Split skin, leaking berry and clear juice ice are distinct; cluster of intact berries is not necessarily split fruit.
Sample state: As received frozen, cultivated or wild Vaccinium type; separate controlled-thaw aliquot if character checked.
Sampling and quantity: Use P1: five sampling positions and separate 500 g analytical units for the proposed contract pilot; preserve pack/stratum identity and use a separate matched unit for destructive tests. For P15 official blueberry grade, use its separate 16 oz net-weight equivalent and native/cultivated type rules.
Inspection procedure: Inspect ice-free-handlable berries before any force; classify split/leaking, crushed/mushy/broken, intact contact cluster and free juice ice separately. Use a matched aliquot for thaw character.
Calculation and reporting: Pilot split count/berry count, hard-cluster g/net food g, free-ice g/as-received contents g. For P15 character assess crushed+mushy+broken together by weight; Grade A selected factor ≤6% by weight with full grade rules. Retain all five results. Pool only matching ratios by summed numerators and denominators; report non-ratio measurements separately.
Product control response: Processor washer pressure, freezer load and cold-chain investigation. Record adjustment time and affected lot boundary; inspect pre/post adjustment material before deciding rework.
Records: Record lot/pack/harvest identity, sample weight and count, method revision, equipment calibration where used, photographs of each class, raw tally, operator/date and any rework/retest. Retain Declared cultivated/wild type, destemmer/size-grader settings, optical-sort rejects and freezer-pack history.
Hold and release: Hold if agreed rupture/ice criteria fail; do not reclassify leaked juice as berry mass. The actual processor QC identifies and holds the affected lot/stratum, documents any permitted rework and retest, and its authorized quality manager signs release only after the signed criterion and independent safety checks pass; GreenLand coordinates buyer review.
Source applicability: P15 USDA AMS Frozen Blueberries effective 22 May 1957, corrected/reprinted 24 Apr 2026 (not a new grade). §§52.611-620 distinguish native/wild versus cultivated. §52.617 defect allowances per 16 oz net weight = 453.592 g, with type-specific cluster rules; §52.616 Grade A color permits at most 5% red-purple by count; §52.618 Grade A character permits at most 6% crushed/mushy/broken by weight. Those are selected-grade factors, not stand-alone purchase tolerances.
Sources: P15: USDA AMS frozen blueberries, 1957; corrected/reprinted 24 Apr 2026 §§52.611-618 · GL-BL: GreenLand blueberry product guide
Size grading
Method D13-04 · proposed order procedure · reviewed 17 October 2026
Definition: Cultivated versus wild blueberry type and diameter distribution must be declared before a size claim.
Sample state: As received frozen, cultivated or wild Vaccinium type; separate controlled-thaw aliquot if character checked.
Sampling and quantity: Use P1: five sampling positions and separate 500 g analytical units for the proposed contract pilot; preserve pack/stratum identity and use a separate matched unit for destructive tests. For P15 official blueberry grade, use its separate 16 oz net-weight equivalent and native/cultivated type rules.
Inspection procedure: Declare wild/native or cultivated. Measure greatest diameter of 100 systematic intact berries per pack on frozen surface with no pressure, or pass a buyer-specified sieve stack once without shaking damage.
Calculation and reporting: Report count in each diameter band/total intact berries and exact mm band boundaries; if buyer chooses mass basis, give band g/total measured berry g separately. Retain all five results. Pool only matching ratios by summed numerators and denominators; report non-ratio measurements separately.
Product control response: Processor grader calibration and species segregation. Record adjustment time and affected lot boundary; inspect pre/post adjustment material before deciding rework.
Records: Record lot/pack/harvest identity, sample weight and count, method revision, equipment calibration where used, photographs of each class, raw tally, operator/date and any rework/retest. Retain Declared cultivated/wild type, destemmer/size-grader settings, optical-sort rejects and freezer-pack history.
Hold and release: Release only against contracted type and distribution; never transpose count percentages to mass percentages. The actual processor QC identifies and holds the affected lot/stratum, documents any permitted rework and retest, and its authorized quality manager signs release only after the signed criterion and independent safety checks pass; GreenLand coordinates buyer review.
Source applicability: P15 USDA AMS Frozen Blueberries effective 22 May 1957, corrected/reprinted 24 Apr 2026 (not a new grade). §§52.611-620 distinguish native/wild versus cultivated. §52.617 defect allowances per 16 oz net weight = 453.592 g, with type-specific cluster rules; §52.616 Grade A color permits at most 5% red-purple by count; §52.618 Grade A character permits at most 6% crushed/mushy/broken by weight. Those are selected-grade factors, not stand-alone purchase tolerances.
Sources: P15: USDA AMS frozen blueberries, 1957; corrected/reprinted 24 Apr 2026 §§52.611-618 · GL-BL: GreenLand blueberry product guide
Bloom, frost and surface appearance
Method D13-05 · proposed order procedure · reviewed 17 October 2026
Definition: Natural wax bloom, removable frost crystals and desiccated/freezer-burn surface are visually different.
Sample state: As received frozen, cultivated or wild Vaccinium type; separate controlled-thaw aliquot if character checked.
Sampling and quantity: Use P1: five sampling positions and separate 500 g analytical units for the proposed contract pilot; preserve pack/stratum identity and use a separate matched unit for destructive tests. For P15 official blueberry grade, use its separate 16 oz net-weight equivalent and native/cultivated type rules.
Inspection procedure: Inspect sealed pack and then frozen berries at −18±2°C under fixed 5000 K light. Record natural bloom, external frost, desiccation and freezer burn in separate photo classes; do not wash natural bloom. Reinspect a matched portion after brief covered 4±2°C equilibration to identify removable frost.
Calculation and reporting: Affected berries by class/berries examined, plus free-frost g/as-received contents g only if physically separable and weighed; no unsupported USDA grade score for bloom. Retain all five results. Pool only matching ratios by summed numerators and denominators; report non-ratio measurements separately.
Product control response: Processor packaging moisture barrier and temperature history. Record adjustment time and affected lot boundary; inspect pre/post adjustment material before deciding rework.
Records: Record lot/pack/harvest identity, sample weight and count, method revision, equipment calibration where used, photographs of each class, raw tally, operator/date and any rework/retest. Retain Declared cultivated/wild type, destemmer/size-grader settings, optical-sort rejects and freezer-pack history.
Hold and release: Hold suspected freezer-burn lots for texture/odor confirmation; natural bloom alone is acceptable if agreed. The actual processor QC identifies and holds the affected lot/stratum, documents any permitted rework and retest, and its authorized quality manager signs release only after the signed criterion and independent safety checks pass; GreenLand coordinates buyer review.
Source applicability: P15 USDA AMS Frozen Blueberries effective 22 May 1957, corrected/reprinted 24 Apr 2026 (not a new grade). §§52.611-620 distinguish native/wild versus cultivated. §52.617 defect allowances per 16 oz net weight = 453.592 g, with type-specific cluster rules; §52.616 Grade A color permits at most 5% red-purple by count; §52.618 Grade A character permits at most 6% crushed/mushy/broken by weight. Those are selected-grade factors, not stand-alone purchase tolerances.
Sources: P15: USDA AMS frozen blueberries, 1957; corrected/reprinted 24 Apr 2026 §§52.611-618 · GL-BL: GreenLand blueberry product guide
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Cultivated blueberries
Confirm whole-fruit grade, intended use and packing.
View product and supply detailsRubus berries · five inspection methods
Read the common sampling and release plan · Download the 10-page PDF and result sheet
Whole fruit and crumbles
Method D14-01 · proposed order procedure · reviewed 17 October 2026
Definition: Whole Rubus berry, loose drupelet and crushed mass must be distinguished by berry-type morphology.
Sample state: As received frozen, named Rubus type; separate controlled-thaw aliquot for character.
Sampling and quantity: Use P1: five sampling positions and separate 500 g analytical units for the proposed contract pilot; preserve pack/stratum identity and use a separate matched unit for destructive tests.
Inspection procedure: State exact Rubus species/type and intended whole/manufacturing style. At −18±2°C sort whole identifiable fruit, loose drupelets and crushed puree gently; do not treat every normal loose drupelet as a separate whole berry.
Calculation and reporting: Whole berry count/identifiable whole-or-damaged berry units where identification possible; loose drupelet g/net fruit g and crushed g/net fruit g; report uncountable crushed mass separately and never force it into a count denominator. Retain all five results. Pool only matching ratios by summed numerators and denominators; report non-ratio measurements separately.
Product control response: Processor packing pressure and freezer-belt transfer. Record adjustment time and affected lot boundary; inspect pre/post adjustment material before deciding rework.
Records: Record lot/pack/harvest identity, sample weight and count, method revision, equipment calibration where used, photographs of each class, raw tally, operator/date and any rework/retest. Retain Declared Rubus type, harvest/handling pressure, stem-sort rejects and frozen transfer history.
Hold and release: Release by buyer's declared whole-fruit use or manufacturing-use profile; do not count drupelets as whole berries. The actual processor QC identifies and holds the affected lot/stratum, documents any permitted rework and retest, and its authorized quality manager signs release only after the signed criterion and independent safety checks pass; GreenLand coordinates buyer review.
Source applicability: P08 USDA AMS Frozen Berries effective 24 May 1967, §§52.5881-5892: Rubus scope and named type/style grade factor definitions. Whole Rubus, fragments, crushed and color need type-specific interpretation; P1 is a proposed contract pilot, not official grade determination.
Sources: P08: USDA AMS frozen Rubus berries §§52.5881,52.5888-5890
Plant material
Method D14-02 · proposed order procedure · reviewed 17 October 2026
Definition: Rubus stem, leaf, sepal and harmless botanical pieces are distinct from grit or hazardous foreign matter.
Sample state: As received frozen, named Rubus type; separate controlled-thaw aliquot for character.
Sampling and quantity: Use P1: five sampling positions and separate 500 g analytical units for the proposed contract pilot; preserve pack/stratum identity and use a separate matched unit for destructive tests.
Inspection procedure: At −18±2°C isolate stem, leaf, sepal, harmless botanical pieces and hard/gritty suspect material from each 500 g unit, photograph ruler scale and keep physical-hazard findings for trace.
Calculation and reporting: Each botanical class pieces/actual sampled kg and class g/net fruit g; hard/gritty objects individual incident report, not a cosmetic percent. Under P08 grade route use its exact type and defect definitions/allowances. Retain all five results. Pool only matching ratios by summed numerators and denominators; report non-ratio measurements separately.
Product control response: Processor field cleaning, destem/optical-sort and foreign-material controls. Record adjustment time and affected lot boundary; inspect pre/post adjustment material before deciding rework.
Records: Record lot/pack/harvest identity, sample weight and count, method revision, equipment calibration where used, photographs of each class, raw tally, operator/date and any rework/retest. Retain Declared Rubus type, harvest/handling pressure, stem-sort rejects and frozen transfer history.
Hold and release: Segregate physical hazards; re-sort botanical material and resample to signed method or explicitly contracted USDA grade. The actual processor QC identifies and holds the affected lot/stratum, documents any permitted rework and retest, and its authorized quality manager signs release only after the signed criterion and independent safety checks pass; GreenLand coordinates buyer review.
Source applicability: P08 USDA AMS Frozen Berries effective 24 May 1967, §§52.5881-5892: Rubus scope and named type/style grade factor definitions. Whole Rubus, fragments, crushed and color need type-specific interpretation; P1 is a proposed contract pilot, not official grade determination.
Sources: P08: USDA AMS frozen Rubus berries §§52.5881,52.5888-5890
Shape damage
Method D14-03 · proposed order procedure · reviewed 17 October 2026
Definition: Expected asymmetric berry shape is not mechanical breakage; deformation, crushed flesh and thaw-soft character are separate.
Sample state: As received frozen, named Rubus type; separate controlled-thaw aliquot for character.
Sampling and quantity: Use P1: five sampling positions and separate 500 g analytical units for the proposed contract pilot; preserve pack/stratum identity and use a separate matched unit for destructive tests.
Inspection procedure: Use same-species signed photo anchor; assess frozen deformation and crushed flesh, then separate covered 4±2°C thaw to ice-free for character, without squeezing.
Calculation and reporting: Damaged count/identifiable fruit count; crushed g/net food g; thaw-soft 0-5 anchored score per pack. P08 crushed definition includes >50% drupelets damaged/detached or materially changed shape where applicable. Retain all five results. Pool only matching ratios by summed numerators and denominators; report non-ratio measurements separately.
Product control response: Processor maturity and transfer-height investigation. Record adjustment time and affected lot boundary; inspect pre/post adjustment material before deciding rework.
Records: Record lot/pack/harvest identity, sample weight and count, method revision, equipment calibration where used, photographs of each class, raw tally, operator/date and any rework/retest. Retain Declared Rubus type, harvest/handling pressure, stem-sort rejects and frozen transfer history.
Hold and release: Hold visible-fruit lots if contracted shape/character fails; consider puree diversion only with buyer signoff. The actual processor QC identifies and holds the affected lot/stratum, documents any permitted rework and retest, and its authorized quality manager signs release only after the signed criterion and independent safety checks pass; GreenLand coordinates buyer review.
Source applicability: P08 USDA AMS Frozen Berries effective 24 May 1967, §§52.5881-5892: Rubus scope and named type/style grade factor definitions. Whole Rubus, fragments, crushed and color need type-specific interpretation; P1 is a proposed contract pilot, not official grade determination.
Sources: P08: USDA AMS frozen Rubus berries §§52.5881,52.5888-5890
Colour and maturity
Method D14-04 · proposed order procedure · reviewed 17 October 2026
Definition: Natural varietal dark/red variation differs from pale unripe fruit; wild type must not be judged by another cultivar chart.
Sample state: As received frozen, named Rubus type; separate controlled-thaw aliquot for character.
Sampling and quantity: Use P1: five sampling positions and separate 500 g analytical units for the proposed contract pilot; preserve pack/stratum identity and use a separate matched unit for destructive tests.
Inspection procedure: Stratify black/boysen/dew/logan/young berry as the P08 named scope and check chosen type under 5000 K light against signed ripe photo reference; separate pale immature from darkened/oxidized.
Calculation and reporting: Unripe and discolored counts/total examined fruit by class, plus observed type and mass of uncountable crushed fruit. Official P08 color/grade factors only if exact type/grade/pack style chosen. Retain all five results. Pool only matching ratios by summed numerators and denominators; report non-ratio measurements separately.
Product control response: Processor harvest-lot and optical-sort setup. Record adjustment time and affected lot boundary; inspect pre/post adjustment material before deciding rework.
Records: Record lot/pack/harvest identity, sample weight and count, method revision, equipment calibration where used, photographs of each class, raw tally, operator/date and any rework/retest. Retain Declared Rubus type, harvest/handling pressure, stem-sort rejects and frozen transfer history.
Hold and release: Apply correct P08 berry-type/grade only if named; otherwise approve buyer color reference. The actual processor QC identifies and holds the affected lot/stratum, documents any permitted rework and retest, and its authorized quality manager signs release only after the signed criterion and independent safety checks pass; GreenLand coordinates buyer review.
Source applicability: P08 USDA AMS Frozen Berries effective 24 May 1967, §§52.5881-5892: Rubus scope and named type/style grade factor definitions. Whole Rubus, fragments, crushed and color need type-specific interpretation; P1 is a proposed contract pilot, not official grade determination.
Sources: P08: USDA AMS frozen Rubus berries §§52.5881,52.5888-5890
Free-flowing condition
Method D14-05 · proposed order procedure · reviewed 17 October 2026
Definition: Free-flowing individual berries, removable contact clusters and hard juice-ice lumps are separate states.
Sample state: As received frozen, named Rubus type; separate controlled-thaw aliquot for character.
Sampling and quantity: Use P1: five sampling positions and separate 500 g analytical units for the proposed contract pilot; preserve pack/stratum identity and use a separate matched unit for destructive tests.
Inspection procedure: Equilibrate sealed pack at −18±2°C ≥2 h. Invert twice 180° in 2 s each and pour through buyer-signed funnel opening in 10 s; collect non-discharged food, hand-separable clusters, hard juice lumps and free ice separately without crushing.
Calculation and reporting: Freely discharged fruit g/net food g; hard cluster g/net food g; free ice g/as-received contents g; record funnel diameter and pack temperature. Retain all five results. Pool only matching ratios by summed numerators and denominators; report non-ratio measurements separately.
Product control response: Processor freezer separation/packing temperature and cold-store records. Record adjustment time and affected lot boundary; inspect pre/post adjustment material before deciding rework.
Records: Record lot/pack/harvest identity, sample weight and count, method revision, equipment calibration where used, photographs of each class, raw tally, operator/date and any rework/retest. Retain Declared Rubus type, harvest/handling pressure, stem-sort rejects and frozen transfer history.
Hold and release: Hold if discharge or ice criterion fails; investigate thaw-refreeze before rework. The actual processor QC identifies and holds the affected lot/stratum, documents any permitted rework and retest, and its authorized quality manager signs release only after the signed criterion and independent safety checks pass; GreenLand coordinates buyer review.
Source applicability: P08 USDA AMS Frozen Berries effective 24 May 1967, §§52.5881-5892: Rubus scope and named type/style grade factor definitions. Whole Rubus, fragments, crushed and color need type-specific interpretation; P1 is a proposed contract pilot, not official grade determination.
Sources: P08: USDA AMS frozen Rubus berries §§52.5881,52.5888-5890
Mango · five inspection methods
Read the common sampling and release plan · Download the 10-page PDF and result sheet
Fibre
Method D15-01 · proposed order procedure · reviewed 17 October 2026
Definition: Normal mango flesh fibers differ from coarse strands that remain perceptible after the buyer's preparation.
Sample state: As received frozen peeled chunks; matched covered-thaw aliquot for drip, fiber or compositional test.
Sampling and quantity: Use P1: five sampling positions and separate 500 g analytical units for the proposed contract pilot; preserve pack/stratum identity and use a separate matched unit for destructive tests.
Inspection procedure: Declare cultivar and dice size. Covered-thaw matched 500 g at 4±2°C to ice-free; puree a signed mass for exactly 30 s with specified blender blade/speed, pass once through buyer-signed sieve aperture with no pressing; inspect retained coarse strands. Use tasting only after safe-use approval.
Calculation and reporting: Coarse fiber g/initial thawed mango flesh g, plus coded 0-5 texture anchors by ≥2 assessors; record sieve aperture, blend setup and mass balance. Retain all five results. Pool only matching ratios by summed numerators and denominators; report non-ratio measurements separately.
Product control response: Processor cultivar/maturity segregation and trimming review. Record adjustment time and affected lot boundary; inspect pre/post adjustment material before deciding rework.
Records: Record lot/pack/harvest identity, sample weight and count, method revision, equipment calibration where used, photographs of each class, raw tally, operator/date and any rework/retest. Retain Cultivar/harvest lot, peel/pit station, dicer setting, optical-sort rejects and freezer-pack history.
Hold and release: Release by signed application-specific fiber profile, not by a generic mango claim. The actual processor QC identifies and holds the affected lot/stratum, documents any permitted rework and retest, and its authorized quality manager signs release only after the signed criterion and independent safety checks pass; GreenLand coordinates buyer review.
Source applicability: Proposed GreenLand order methods for the named mango cultivar, cut and use. The linked supplier guide provides product context. Preparation quantities, time and temperature in this card are test settings; Brix, acidity, fibre, size and loss limits are buyer terms, while safety and ready-to-eat status need their own validation.
Sources: GL-MG: GreenLand mango product guide
Skin and stone membrane
Method D15-02 · proposed order procedure · reviewed 17 October 2026
Definition: Green/yellow peel, papery pit membrane and benign flesh pigment spot are separate classes.
Sample state: As received frozen peeled chunks; matched covered-thaw aliquot for drip, fiber or compositional test.
Sampling and quantity: Use P1: five sampling positions and separate 500 g analytical units for the proposed contract pilot; preserve pack/stratum identity and use a separate matched unit for destructive tests.
Inspection procedure: Inspect six sides of frozen dice; cut suspect pieces; separate peel, papery endocarp membrane, hard/sharp pit fragment and benign flesh spot. Photograph and retain hard fragments for hazard review.
Calculation and reporting: Soft peel g/net food g; membrane g/net food g; spotted flesh g/net food g; hard fragment pieces/kg and incident identity. Retain all five results. Pool only matching ratios by summed numerators and denominators; report non-ratio measurements separately.
Product control response: Processor peel/pit-trim and optical-sort records. Record adjustment time and affected lot boundary; inspect pre/post adjustment material before deciding rework.
Records: Record lot/pack/harvest identity, sample weight and count, method revision, equipment calibration where used, photographs of each class, raw tally, operator/date and any rework/retest. Retain Cultivar/harvest lot, peel/pit station, dicer setting, optical-sort rejects and freezer-pack history.
Hold and release: Segregate and investigate suspected insect/physical-hazard material through the actual processor's food-safety system; do not apply an appearance allowance to it. For nonhazard classes, buyer signs limits and allowed rework; processor QC holds/retests and its authorized quality manager signs release, with GreenLand coordinating the evidence.
Source applicability: Proposed GreenLand order methods for the named mango cultivar, cut and use. The linked supplier guide provides product context. Preparation quantities, time and temperature in this card are test settings; Brix, acidity, fibre, size and loss limits are buyer terms, while safety and ready-to-eat status need their own validation.
Sources: GL-MG: GreenLand mango product guide
Dice form
Method D15-03 · proposed order procedure · reviewed 17 October 2026
Definition: Target cube, rounded edge, missing corner and fine broken piece are defined against the signed cut drawing.
Sample state: As received frozen peeled chunks; matched covered-thaw aliquot for drip, fiber or compositional test.
Sampling and quantity: Use P1: five sampling positions and separate 500 g analytical units for the proposed contract pilot; preserve pack/stratum identity and use a separate matched unit for destructive tests.
Inspection procedure: Measure three orthogonal axes of ≥100 systematic frozen dice per pack without compression, using signed cut drawing; separate fines below minimum dimension and missing-corner class.
Calculation and reporting: In-band dice count/total measured dice, three-axis mm distribution; fragment g/net food g; corner-loss count/total dice. Retain all five results. Pool only matching ratios by summed numerators and denominators; report non-ratio measurements separately.
Product control response: Processor dicer calibration/blade wear and postfreeze handling. Record adjustment time and affected lot boundary; inspect pre/post adjustment material before deciding rework.
Records: Record lot/pack/harvest identity, sample weight and count, method revision, equipment calibration where used, photographs of each class, raw tally, operator/date and any rework/retest. Retain Cultivar/harvest lot, peel/pit station, dicer setting, optical-sort rejects and freezer-pack history.
Hold and release: Release by contracted size and fragment band, including buyer equipment fit. The actual processor QC identifies and holds the affected lot/stratum, documents any permitted rework and retest, and its authorized quality manager signs release only after the signed criterion and independent safety checks pass; GreenLand coordinates buyer review.
Source applicability: Proposed GreenLand order methods for the named mango cultivar, cut and use. The linked supplier guide provides product context. Preparation quantities, time and temperature in this card are test settings; Brix, acidity, fibre, size and loss limits are buyer terms, while safety and ready-to-eat status need their own validation.
Sources: GL-MG: GreenLand mango product guide
Soluble solids, acidity and maturity
Method D15-04 · proposed order procedure · reviewed 17 October 2026
Definition: Mango sweetness, acid balance and maturity are use-specific; soluble solids alone do not establish ripe flavor or safety.
Sample state: As received frozen peeled chunks; matched covered-thaw aliquot for drip, fiber or compositional test.
Sampling and quantity: Use P1: five sampling positions and separate 500 g analytical units for the proposed contract pilot; preserve pack/stratum identity and use a separate matched unit for destructive tests.
Inspection procedure: Thaw each matched portion covered at 4 +/-2 C to ice-free. Homogenize several dice from each position and take duplicate soluble-solids readings with a water-zeroed refractometer at 20 C or a documented temperature-compensated condition. For the proposed acidity comparison weigh 10.00 g homogenate, add water to disperse, and titrate the entire dispersion with standardized nominal 0.100 N NaOH to pH 8.20 using a calibrated pH meter; run a water/reagent blank. No aliquot dilution factor is needed when the full dispersion is titrated.
Calculation and reporting: Report each position degree Brix, both readings and sample temperature. Proposed TA as anhydrous citric acid g/100 g = (Vsample - Vblank) mL x actual NaOH N x 0.06404 x100 / original homogenate mass g. Record endpoint, blank, mass and normality. This is citric-acid equivalent, not a measurement of citric acid alone; agree another acid equivalent if the buyer needs it. Compare Brix and TA per position; a Brix/TA ratio must name both methods and does not establish microbial safety.
Product control response: Processor maturity sort; buyer chooses acceptance ranges and flavor reference. Record adjustment time and affected lot boundary; inspect pre/post adjustment material before deciding rework.
Records: Record lot/pack/harvest identity, sample weight and count, method revision, equipment calibration where used, photographs of each class, raw tally, operator/date and any rework/retest. Retain Cultivar/harvest lot, peel/pit station, dicer setting, optical-sort rejects and freezer-pack history.
Hold and release: Approve a signed use-specific range and sensory reference plus separate safety plan; no universal Brix guarantee. The actual processor QC identifies and holds the affected lot/stratum, documents any permitted rework and retest, and its authorized quality manager signs release only after the signed criterion and independent safety checks pass; GreenLand coordinates buyer review.
Source applicability: Proposed GreenLand order methods for the named mango cultivar, cut and use. The linked supplier guide provides product context. Preparation quantities, time and temperature in this card are test settings; Brix, acidity, fibre, size and loss limits are buyer terms, while safety and ready-to-eat status need their own validation.
Sources: GL-MG: GreenLand mango product guide · FAO-TA: FAO postharvest training: measurement of titratable acidity · FAO-CITRIC: FAO/JECFA citric acid specification: anhydrous acid equivalent
Thaw performance
Method D15-05 · proposed order procedure · reviewed 17 October 2026
Definition: Intact thawed cube, slumped soft cube and free drip are distinct post-thaw results.
Sample state: As received frozen peeled chunks; matched covered-thaw aliquot for drip, fiber or compositional test.
Sampling and quantity: Use P1: five sampling positions and separate 500 g analytical units for the proposed contract pilot; preserve pack/stratum identity and use a separate matched unit for destructive tests.
Inspection procedure: Thaw matched separate 500 g at 4±2°C covered to ice-free; drain on named mesh for 2 min without pressure; count dice retaining all three dimensions above signed minimum. If line trial, record shear device, residence time and temperature.
Calculation and reporting: Intact dice count/all identifiable dice ×100; free drip g/initial frozen net food g ×100; separate lost/unidentifiable mash g. Retain all five results. Pool only matching ratios by summed numerators and denominators; report non-ratio measurements separately.
Product control response: Processor freezer and storage investigation; RTE claim only after independent validation. Record adjustment time and affected lot boundary; inspect pre/post adjustment material before deciding rework.
Records: Record lot/pack/harvest identity, sample weight and count, method revision, equipment calibration where used, photographs of each class, raw tally, operator/date and any rework/retest. Retain Cultivar/harvest lot, peel/pit station, dicer setting, optical-sort rejects and freezer-pack history.
Hold and release: Release by matched thaw/line performance; label RTE only after actual process/use validation, never freezing alone. The actual processor QC identifies and holds the affected lot/stratum, documents any permitted rework and retest, and its authorized quality manager signs release only after the signed criterion and independent safety checks pass; GreenLand coordinates buyer review.
Source applicability: Proposed GreenLand order methods for the named mango cultivar, cut and use. The linked supplier guide provides product context. Preparation quantities, time and temperature in this card are test settings; Brix, acidity, fibre, size and loss limits are buyer terms, while safety and ready-to-eat status need their own validation.
Sources: GL-MG: GreenLand mango product guide
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