How importers evaluate avocado and blueberry grades

An offer saying “premium” is not an inspection instruction. UNECE FFV-42 (opens in a new tab) defines avocado commercial quality, while FFV-57 (opens in a new tab) covers berry fruits including blueberries. Both distinguish Extra, Class I and Class II. For procurement, ask which standard and edition govern, where conformity is assessed, and which additional buyer requirements apply. Do not assume the same class name has identical limits for both commodities.

Treat document review and physical inspection as separate gates. Before comparing proposals, request the class, variety, origin, size definition, packaging and intended ripeness. At arrival, reconcile those declarations with the labelled lots and measured condition. This is an inspection-focused companion to our avocado buying guide and product pages, linked below, rather than another origin or seasonal sourcing overview.

Under FFV-42, 2023 edition (opens in a new tab), Extra allows only very slight superficial defects. Class I allows specified slight defects, including non-progressive skin defects and sunburn totalling no more than 4 cm²; Class II allows up to 6 cm². These defects must not affect flesh. A dry, intact stalk attachment can be acceptable without a stalk; a present stalk must be cleanly cut and no longer than 10 mm.

Size is determined by weight or count. The examples below are UNECE weight bands, not a universal promise about the number of fruit in any carton. For Antillean varieties, the smallest fruit must weigh at least 75% of the largest in the package. For other varieties, use the standard size scale; code S is below 123 g, with no more than 25 g between smallest and largest fruit in a package.

Packages must be uniform in origin, variety, quality, colouring and size, and their visible contents must represent the whole. Dark-skinned varieties may change colour; package colour uniformity is assessed at dispatch. Check external markings for packer/dispatcher identification, country of origin, variety, class and the applicable size/count/weight declaration. Match carton artwork to the agreed packing configuration; a photograph of the top layer alone does not establish uniformity.

FFV-57 (opens in a new tab) has no berry sizing requirements. A diameter threshold or size distribution is therefore a separate commercial requirement: specify the measuring method, cutoff and allowed undersize explicitly. Extra blueberries must be practically free of agglomerated berries and practically covered with bloom according to varietal characteristics. Class I also requires these blueberry characteristics and allows very slight juice leakage and bruising; Class II allows slight leakage, early crushing and bruising under its conditions.

Packages generally need uniform origin, variety or species, and quality; Extra and Class I berries must also be practically uniform in ripeness. For blueberry offers, ask how the packer distinguishes natural bloom from contamination and how wet, split, leaking or soft berries are recorded. Avoid treating attractive colour or bloom as a substitute for condition checks. Compare fruit from the lower part of a punnet with the visible top layer.

Both FFV-42 (opens in a new tab) and FFV-57 (opens in a new tab) apply lot tolerances by number or weight. Extra permits 5% failing Extra but meeting Class I, with at most 0.5% of the total lot meeting Class II. Class I permits 10% failing Class I but meeting Class II; the internal allowance for fruit below Class II/minimum requirements or decayed differs: 1% for avocados and 2% for berries. These sublimits sit inside, not on top of, the overall tolerance.

Class II permits 10% below its class/minimum requirements, with decay capped at 2% for avocados and 4% for berries within that total. FFV-42 additionally permits 10% size nonconformity in all classes; FFV-57 has no standard size tolerance because it sets no size requirement. Agree how defects are classified and overlapping observations recorded. Do not sum every defect column and automatically call the result a unique-fruit failure rate.

If an offer instead cites Codex CXS 197-1995 (opens in a new tab), use that text, not a hybrid UNECE specification. Codex includes Torres among varieties with a 20% dry-matter minimum and has different size provisions, including code 32 at 80–123 g for Hass type only. Its size tolerance concerns the immediately adjacent size above or below. Record the chosen standard and any deliberate contractual departures.

FFV-42 (opens in a new tab) specifies minimum dry matter measured by drying to constant weight: 21% for Hass; 20% for Fuerte, Pinkerton, Reed and Edranol; 19% for other varieties except Antillean varieties, which may be lower. Fruit must be capable of continuing to ripen satisfactorily. Do not replace these UNECE values with figures from another maturity regime. UC Davis (opens in a new tab) discusses cultivar-dependent maturity indices and identifies flesh softening and, in some cultivars, skin colour change as ripening indicators.

For a defensible dry-matter report, request the lot identity, sampling plan, fresh tissue mass, final dry mass, drying method and constant-weight endpoint. Calculate dry matter as dry tissue mass divided by fresh tissue mass × 100%. This is a proposed reporting protocol, not a complete laboratory method supplied by FFV-42. Agree tissue selection and equipment before commissioning tests; a single attractive fruit should not stand for a shipment.

Keep firmness results in a separate field. Specify instrument or manual scale, units, test location, fruit temperature and whether the test is destructive; use the same procedure at dispatch and receipt. No universal firmness threshold for both products is established by the sources reviewed. UC Davis bushberry guidance (opens in a new tab) notes that berry flavour does not improve after harvest, so delayed evaluation is not a substitute for an agreed harvest and arrival condition specification.

UC Davis avocado guidance (opens in a new tab) gives 5–13°C for mature-green fruit, depending on cultivar and storage duration, and 2–4°C for ripe avocados, with 90–95% relative humidity. Its bushberry sheet (opens in a new tab) recommends 0 ± 0.5°C and 90–95% relative humidity. These are physiological handling references, not interchangeable shipping instructions or evidence that every cultivar tolerates the coldest endpoint.

For inspection planning, ask for the agreed setpoint, precooling record, loading pulp temperatures, logger locations and complete time series through receipt. Distinguish reefer air from fruit pulp measurements. A receiver reading cannot reconstruct the whole voyage. Avoid diagnosing fault from a single temperature spike without considering duration, sensor placement, fruit stage and the contract.

UC Davis describes avocado chilling symptoms including pitting, scalding, blackening and internal browning, and diseases including anthracnose and stem-end rot. Its bushberry sheet identifies water-loss shrivel and important decay risks including gray mold. At arrival, photograph both exterior and cut-fruit findings where relevant; record softness, leakage and crushed berries separately rather than attributing every defect to temperature abuse.

The sampling notes in FFV-42 (opens in a new tab) and FFV-57 (opens in a new tab) base conformity assessment on randomly selected primary or composite samples assumed to represent the lot, and recommend OECD operating rules. Agree the applicable sampling procedure with the inspector; do not invent a universal sample count for every consignment. Define lots by relevant declarations and sample across accessible pallet and carton positions, documenting any access limitations.

USDA AMS contracting guidance (opens in a new tab) says the contract, transit conditions and destination condition all matter, and recommends prompt USDA inspection or an independent survey plus sale terms and temperature records. It distinguishes FOB shipping-point/suitable-shipping-condition obligations from delivered obligations. This is US PACA guidance, not an automatic worldwide rejection rule. Obtain advice under the governing contract before unloading, diverting, rejecting or disposing of disputed produce.

Use the following as a recommended evidence bundle. Photos support an inspection report but should not replace quantified findings. Preserve original files, connect every image to a sample and lot, and notify the contractual counterparty promptly under the agreed notice procedure. Record mitigation and subsequent handling separately from the original arrival findings so later deterioration is not confused with the first inspection.

USDA AMS does publish fresh-blueberry standards (opens in a new tab), including U.S. No. 1, with no grade size requirement unless size is specifically requested. Its stated scope is selected cultivated highbush and rabbiteye varieties. AMS also publishes Florida avocado grades (opens in a new tab) including U.S. No. 1, U.S. Combination and U.S. No. 2. Do not relabel a Hass offer “USDA avocado grade” without naming the applicable standard and checking scope; these sources do not establish one universal avocado grade for every origin and cultivar.

The AMS organic enforcement FAQ, general questions updated June 2026 (opens in a new tab) distinguishes an organic operation certificate from the NOP Import Certificate required for certified organic shipments entering the United States. Check organic status, product scope and shipment traceability separately from commercial grade; for China or another destination, establish the applicable certificate requirements rather than transferring US documents by analogy. This sourced clarification is not evidence of a new avocado or blueberry grade revision in 2025–2026.

Example RFQ wording: “Hass avocados: UNECE FFV-42, 2023 edition, Class I, code 16, 227–274 g; minimum dry matter 21% by drying to constant weight. Blueberries: UNECE FFV-57, 2023 edition, Class I; quote diameter specification separately. Declare origin, variety, packing, net weight, arrival ripeness/firmness method, agreed temperature protocol, inspection stage, sampling procedure, tolerances and claim-notification terms. Attach label artwork and available test records.” Complete the missing commercial limits before acceptance; this wording alone is not a complete purchase contract.

Global B2B Group is free for buyers. Submit one structured RFQ through our platform; our team reviews it, approaches suitable independent suppliers on your behalf and returns comparable proposals. Buyers never contact suppliers directly. Assisted sourcing applies to programmes of USD 250,000 or more per year or season; suppliers cannot pay for placement. We do not grow, pack, export, import, sell or certify produce, have no contracts with any company researched here, and provide no assurance of supply, quality, certification or market access.