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About Seaweed
"Slightly damp seaweed."
Seaweed is a members-only crafting material harvested from drops and shops, cooked on a range into soda ash for glass making. High alchemy value: 1 coin. Grand Exchange buy limit: 13,000 per 4 hours.
Item Details
Item ID401
MembersYes
Store Value2gp
High Alch1gp
Low Alch1gp
GE Limit13,000 / 4h
Item Information
TradeableYes
StackableNo
NoteableYes
EquipableNo
Quest itemNo
AlchableYes
Drop Sources
| Source | Combat | Qty | Rate | Rarity |
|---|---|---|---|---|
| Rock crab | 13 | 1 | — | Common |
| Baby implingP2P | — | 1 | — | Common |
Shops (1)
| Shop | Location | Stock | Price | World |
|---|---|---|---|---|
| Trader Stan's Trading Posts | — | 0 | 5 gp | F2P |
Used in production (1)
| Product | Skill | Lvl | XP | Qty |
|---|---|---|---|---|
| Soda ash | Cooking | 1 | 1 | 1 |
History (1)
- 2001-12-12
Seaweed added with the Crafting skill and glass making pipeline.
Market Strategy
- Glassmaking pipeline input; price is bound to giant seaweed and soda ash
- Steady demand from Crafting trainers via Superglass Make
- Supply leans on impling and Rock crab drop tables plus shop runs
Trading Tips
Compare giant seaweed per unit vs seaweed price for arbitrage
Buy in bulk before crafting bottle / glassblowing events
Skip seaweed if Superglass Make herblore unlock makes giant seaweed cheaper

