Wholesale spirulina manufacturers

When evaluating Spirulina, the protein content is the primary indicator of quality, which should ideally be between 60% and 70%. Additionally, check the Phycocyanin levels, a potent antioxidant that should range from 10% to 19%. The physical appearance should be a uniform deep dark green powder with a fine texture (typically 80-120 mesh) and a mild seaweed scent, rather than a strong fishy odor which indicates oxidation.

As a dietary supplement/food ingredient, Spirulina must meet strict safety standards. Ensure the supplier provides COA (Certificate of Analysis) for every batch. Key certifications include ISO 22000 or HACCP for food safety management, and Organic certifications (USDA Organic, EU Organic, or JAS) if you are targeting the premium market. For US-bound goods, FDA registration of the facility is essential, and products must comply with heavy metal limits (Lead < 0.5ppm, Mercury < 0.1ppm) and microbiological safety (Salmonella and E. coli negative).

Spirulina is highly absorbent, meaning the environment it grows in is critical. Open-pond cultivation is common but requires strict monitoring of air quality and water purity to prevent contamination from dust or wild algae. Closed photobioreactors offer higher purity but at a higher cost. You must ask the supplier for heavy metal testing reports specifically for Lead, Arsenic, and Cadmium, as well as tests for Microcystins (toxins produced by blue-green algae contamination).

Spirulina is primarily traded in three forms: Powder, which is ideal for smoothies, health drinks, and food fortification; Tablets (usually 500mg), preferred for direct retail and ease of consumption; and Capsules, which are often used for premium supplement lines. For industrial applications like animal feed or cosmetics, lower-grade powders may be used, but for human consumption, Food Grade or Pharmaceutical Grade is a non-negotiable requirement.

Always request a pre-shipment inspection (PSI) conducted by a third-party lab like SGS or Intertek. Do not rely solely on the factory's internal lab report. Ensure the sample tested is randomly selected from the actual batch being shipped to verify it meets your country's specific food safety regulations.

Spirulina prices fluctuate based on harvest seasons and energy costs. To get the best rate, aim for annual volume contracts rather than one-off spot purchases. For new buyers, look for suppliers on Made-in-China.com that offer flexible MOQs (e.g., 25kg drums) for trial orders, and negotiate a tiered pricing structure where the unit price drops significantly once you exceed 500kg or 1 ton.

Spirulina is sensitive to light, heat, and moisture. Ensure the product is packed in vacuum-sealed aluminum foil bags inside fiber drums. For sea freight, request cool and dry storage positions on the vessel (away from the engine room). Upon arrival, it must be stored in a temperature-controlled warehouse (below 25°C) to prevent the degradation of heat-sensitive nutrients like Phycocyanin.

Utilize the secured payment services provided by reputable B2B platforms like Made-in-China.com to ensure your funds are only released after the supplier provides proof of shipment. Additionally, verify the supplier's Business License and Export Qualification to ensure they are a legitimate manufacturer and not an unlicensed middleman.