Lichen is a Food item in Don't Starve. It is classified as a Vegetable, and can only be obtained in the Ruins by harvesting Cave Lichen. Lichen cannot be cooked at a Fire Pit, Campfire or Star Caller's Staff, but it can be used as an ingredient in a Crock Pot. Lichen will regrow after 5 days have passed.
Lichen can be eaten raw and can restore 3 and 12.5 , at the cost of 5 . Sanity penalty can be avoided by using it in the Crock Pot instead. Unagi recipe in the Crock Pot specifically requires Lichen, however, Lichen can also be used as a filler. Lichen spoils very quickly and becomes Rot 2 days after being harvested.
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- Lichen used to be green. Its color was changed when the Stuff of Nightmares update was released.