Dry goji berry

Quality is primarily determined by size (grain count per 50g), moisture content, and color. Premium grades usually range from 280 to 380 grains per 50g. Ensure the berries are naturally deep red rather than artificially bright, and check that they are loose and non-clumping, which indicates a moisture content below 13%.

As a food product, compliance is critical. You must prioritize suppliers with HACCP, ISO 22000, or BRC certifications. For organic markets, verify USDA Organic or EU Organic certifications. Ensure the product meets pesticide residue limits (MRLs) and sulfur dioxide (SO2) levels (ideally sulfur-free) required by your local food safety authority, such as the FDA or EFSA.

Professional suppliers use low-temperature air drying or vacuum freeze-drying technologies. These methods preserve the polysaccharides, antioxidants, and heat-sensitive vitamins better than traditional sun drying. Ask your supplier for a Certificate of Analysis (COA) to confirm the active ingredient levels.

Goji berries are highly hygroscopic (absorb moisture). Use aluminum foil vacuum bags or nitrogen-flushed packaging to prevent oxidation and clumping. Outer cartons should be double-corrugated to withstand humidity changes during sea freight. For retail-ready goods, ensure UV-protective packaging to prevent color fading.

Request a pre-shipment sample and perform a simple water soak test; the water should turn pale yellow, not bright red. Use third-party inspection services (like SGS or Intertek) to test for sulfur dioxide and artificial colorants before the final balance payment is made.

Focus on long-term volume commitments rather than one-off price haggling. Ask for tiered pricing based on grain size and request a fixed price window for 3-6 months to protect against seasonal price fluctuations in the agricultural market.

Always conduct transactions through secure payment channels and use Escrow services if available. Ensure the Bill of Lading (B/L) description matches the commercial invoice exactly, and clarify Incoterms (e.g., FOB vs CIF) to define exactly where the risk transfers during transit.

Ensure the supplier provides a Phytosanitary Certificate issued by the exporting country's government. Check if your country requires a Prior Notice (common in the US) or specific labeling requirements (Ingredients, Net Weight, Country of Origin, and Expiration Date) in the local language.