Gracilaria is the one species in our lineup that isn't grown in the open sea. It's farmed in brackish ponds, which is a different operation entirely from the long-line method we use for Cottonii and Spinosum — and it's why Gracilaria from our Java network has a cleaner, lower-ash profile that agar processors look for.
Pond farming gives more control over water conditions than open-sea lines do, but it also means the farms need to be actively managed — salinity, water exchange, and stocking density all affect yield and quality in ways that open-water farming doesn't have to account for.
After harvest, Gracilaria goes through the same traceability chain as every other species we export: graded and batch-tagged at harvest, sun-dried, lab-checked for ash content, and inspected by SGS before loading. We hold it to under 12% moisture at packing.
If agar-grade specification is what you're sourcing for, our export desk can talk through lab results for a specific batch before you commit to a sample order.