Kospermindo

Alginate comes from brown seaweeds, not the red ones behind carrageenan. What it is, the E401–E405 family, and the quality questions around Sargassum.

Sacks or pressed bales, container checks, moisture protection, photos and seals: the loading-day details that decide how dried seaweed arrives.

A line-by-line guide to the parameters on a dried seaweed specification — moisture, impurities, salt, CAW and gel strength — and how to negotiate them.

A farmer is paid for what the scale says. Why weighing disputes happen in the seaweed trade, and how calibrated scales and written records build trust.

Seaweed reaches cosmetics in two forms: purified hydrocolloids that give texture, and extracts sold for skin care. What each is and what buyers should ask.

Invoice, packing list, bill of lading, origin and health certificates, COA: what each export document does and how seaweed buyers should check them.

Ice-ice whitens and softens farmed Kappaphycus, and outbreaks follow stressful conditions. How to recognise it, what drives it and how farms reduce losses.

A lab result is only as good as the sample behind it. Why seaweed sampling goes wrong and a step-by-step method for drawing, splitting and sealing samples.

Farmed seaweed is grown from cuttings, so weak or diseased planting material carries into every harvest. How seedlings are chosen and kept healthy.

Semi-refined and refined carrageenan are made in different ways, so they ask different things of dried seaweed. What each route needs from suppliers.