What to do with · Valheim 1.0.17
What to do with Guck
It smells like fermented fish.
It goes into 2 recipes and 2 building pieces. It's fuel for the Standing Green-burning Iron Torch.
Draugr Fang× 10 · Mountains
Green Fireworks× 1 · Plains
Standing Green-burning Iron Torch× 2 · build
Green Banner× 1 · buildStanding Green-burning Iron TorchFuelStacks to 50Weight 0.5Full Guck page →
Craft with it (2)
Earliest first, by the biome where everything the recipe needs can first be had.
Build with it (2)
Burn it as fuel
Last resort: the Obliterator
Obliteratorturns any 10 items (stacks counted one by one) into 1 
Coal; the rest is lost.
Incinerator.Incinerate in the game code.
Where to get more Guck
Dropped byAbominationSwamp- Broken fromGuck Sack
Questions
›What is Guck used for in Valheim?
It goes into 2 recipes and 2 building pieces. It's fuel for the Standing Green-burning Iron Torch.
›Can you sell Guck in Valheim?
No. Traders only buy items with a trade value, and Guck has none. The 9 that do: Amber, Amber Pearl, Ancient Coin, Draumyx, Grimvarn, Solryth, Veydris, Ruby and Silver Necklace.
›Can Guck go through a portal?
Yes, Guck can be carried through a portal.
›Where do you get Guck?
Abomination, Guck Sack. Every source is on the Guck page.
Source: recipes, building pieces, stations, altars, traders and the Obliterator in the files of Valheim 1.0.17 (2026-10-05), prefab Guck.