**Indonesian Eucheuma cottonii — also called Kappaphycus alvarezii — is the primary raw material for kappa carrageenan, prized for high gel strength and low impurity. Iota carrageenan comes from its sister species Eucheuma spinosum. Indonesia ranks as the world’s largest red-seaweed producer, supplying processors from South Sulawesi to the Surabaya export gateway.**
For a carrageenan plant, the feedstock decision is simple in principle and unforgiving in practice: kappa carrageenan needs cottonii, and cottonii quality moves with moisture, cleaning and harvest maturity. Indonesia gives buyers scale and a wide origin base — but grade discipline is where contracts are won or lost.
Why is Indonesian cottonii the primary kappa carrageenan raw material?
Eucheuma cottonii (locally cottonii, katoni, sacul or sakul) is a warm-water red seaweed that carrageenan chemists value for one reason: it is the cleanest volume source of kappa carrageenan, the fraction that forms strong, rigid gels with potassium. Some Indonesian processors market cottonii precisely on that profile — high gel strength, low impurity.
The species thrives within roughly 20 degrees latitude of the equator and can multiply to about ten times its mass in 45-50 days in warm Indonesian waters. Cottonii became cultivable in Indonesia in 1974 after transfer from the Philippines, and today it is grown by the longline method — plastic rope tied to lines anchored to seabed poles. Indonesia and the Philippines remain the two dominant world sources of farmed cottonii.
What carrageenan does cottonii yield, and where is it used?
Cottonii yields kappa carrageenan; spinosum yields iota. Kappa’s firm, clean-cutting gel makes it the workhorse across food and personal-care lines. The table below maps where carrageenan-grade cottonii typically lands downstream.
| Sector | Typical use | Carrageenan role |
|---|---|---|
| Dairy | Chocolate milk, ice cream, flan, evaporated milk | Suspends cocoa, controls ice crystals, sets soft gels |
| Processed meat | Ham, sausage, poultry, canned meat | Binds water, lifts slice yield and bite |
| Confectionery | Jellies, gummies, plant-based desserts | Firm gelatin alternative, clean cut |
| Cosmetics & oral care | Toothpaste, lotions, creams | Thickens and stabilizes emulsions |
Indonesia already processes carrageenan domestically — some domestic carrageenan processors produce food-grade carrageenan from both cottonii and spinosum around Surabaya and East Java — which signals a mature raw-material chain behind the dried bales.
What does carrageenan-grade cottonii cost?
Raw dried cottonii trades on a moisture- and grade-dependent band, not a single number. Cleaned, washed food-grade material sits far higher because processing and yield certainty are built in. Branded Western retail sea moss is a different market entirely and is not our FOB quote.
| Grade | Description | FOB USD/kg |
|---|---|---|
| Commodity / salted | Higher-moisture, sun-dried, higher impurity | 4-7 |
| Standard dried cottonii | Mid-moisture general carrageenan feedstock | 6-9 |
| Higher-grade, low-moisture clean | Under 35% moisture, low foreign matter | 9-12 |
| Cleaned / washed food-grade bulk | Processed wholesale grade | 25-55 |
These are FOB indicative figures per 2026; they move with harvest, moisture and grade, and a final quote is confirmed against your spec and MOQ. Seasonality matters — monsoon rains lengthen sun-drying and push moisture up, while ice-ice disease and epiphytes can dent a given lot’s cleanliness.
What grades and specs should carrageenan buyers check?
Documented wholesale specs for dried cottonii vary by supplier, so align on numbers before you contract. Treat every moisture, ash, foreign-matter, microbiological, heavy-metal or carrageenan-yield figure as claimable only when it comes from a specific batch Certificate of Analysis.
| Spec profile | Moisture | Foreign matter / impurity |
|---|---|---|
| Common wholesale A | 35-37% max | 3% max |
| Sun-dried wholesale B | 35-37% | 5% max |
| Wholesale C | 37-39% | 2% max |
| Premium “Grade A” raw algae | Under 35% | Under 2% |
Packaging is standardized: bales wrapped in polypropylene cloth in 50 kg or 100 kg bags. Container loading runs about 15 MT in a 20ft, 23 MT in a 40ft and 25 MT in a 40HC — roughly 350 x 100 kg bales per 40HC. Shelf life is around 12 months stored cool, dry, sealed and out of direct sunlight.
How does ordering carrageenan-grade cottonii work?
The Bali Premium Trip desk runs a straightforward B2B sequence built around spec-matching and COA verification.
- Share spec and MOQ. Tell us target moisture, application (dairy, meat, confectionery, cosmetics), gel-strength expectation and volume. Typical MOQ is a 1 MT trial rising to 20-100 MT contracts (a container holds ~20-25 MT).
- Sample and COA review. We arrange a trial lot and its batch COA covering moisture, ash, foreign matter, microbiology, heavy metals and carrageenan yield so your lab can validate before scale-up.
- Contract and terms. Trade terms are FOB, CIF or CNF; payment by T/T, 100% irrevocable LC at sight, or advance; delivery typically 30-60 days after payment is approved.
- Documents and shipment. Standard papers include COA, MSDS, fumigation certificate, phytosanitary certificate and Certificate of Origin; Halal and HACCP/ISO 22000 are supplied on request. Origins span Maluku, NTB, NTT and South Sulawesi (Bone, Maros, Jeneponto, Takalar, Luwu, East Luwu), West Lombok and North Kalimantan, consolidated through Bali and Surabaya.
A note on the widening supply base: Indonesia has a real, expanding domestic carrageenan-processing base around Surabaya and East Java, spanning cottonii, spinosum and Gracilaria feedstock. We are a sourcing and logistics desk, not the asset owner, and we cannot guarantee customs clearance in your destination market; documentation is prepared to give your broker the strongest position.
Quote carrageenan-grade cottonii
Ready to price a carrageenan run? Send your spec sheet and we will match origin, grade and moisture to your yield target.
- WhatsApp: 6281128590000
- Email: sales@balipremiumtrip.com
- Response SLA: 24 working hours
Arranged via the Bali Premium Trip concierge desk. Cottonii and sea moss are food ingredients, not medicine — we make no disease-cure claims, and all figures are indicative and subject to change.
Frequently Asked Questions
Is Eucheuma cottonii the same as Kappaphycus alvarezii?
Yes. Eucheuma cottonii is the trade name for the species scientifically reclassified as Kappaphycus alvarezii, known locally as cottonii, katoni, sacul or sakul. It is the red seaweed farmed across Indonesia as the leading source of kappa carrageenan, distinct from Eucheuma spinosum, which supplies iota carrageenan.
Does Indonesian cottonii produce kappa or iota carrageenan?
Cottonii produces kappa carrageenan — the fraction that forms strong, rigid gels with potassium, used in dairy, processed meat and confectionery. Iota carrageenan, which forms softer elastic gels, comes from the sister species Eucheuma spinosum. If your formula needs iota, ask us to source spinosum instead of, or alongside, cottonii.
What carrageenan yield can I expect from Indonesian cottonii?
Yield depends on species, harvest maturity, drying method and moisture, so no single figure fits every lot. Cottonii is valued for high gel strength and low impurity, but the actual carrageenan yield for your shipment should be confirmed by a batch Certificate of Analysis and your own lab, never assumed from a marketing number.
What is the 2026 FOB price for carrageenan-grade cottonii?
Raw dried cottonii runs FOB USD 4-12/kg by grade — roughly 4-7 for commodity salted, 6-9 standard, 9-12 for low-moisture clean lots — while cleaned food-grade bulk sits at USD 25-55/kg. These are indicative per 2026 and move with harvest, moisture and grade; a final quote follows your spec and MOQ.
What documents come with a carrageenan-grade cottonii shipment?
Standard export documents are the Certificate of Analysis, Material Safety Data Sheet, fumigation certificate, phytosanitary certificate and Certificate of Origin. Halal and HACCP/ISO 22000 certification are supplied on request. We prepare paperwork to support your customs broker but cannot guarantee clearance, which remains the importer’s responsibility in the destination country.
Indonesia Sea Moss is part of Juara Holding Group — an Indonesian group operating from Bali across Indonesia since 2015.