Ashes are an Item dropped after a flammable object has been burnt by Fire (some exceptions such as Trees), including the remnants of a Campfire and a destroyed Pig Torch or Fire Pit. Ashes will also replace any item that is not allowed to be carried through to the next World via the Teleportato (e.g. the Eye Bone or Webber's Skull). Ashes are also an ingredient for crafting Healing Salve. Moleworms will take them like minerals such as rocks or flint.
Mobs that are killed by fire will drop Ashes in place of any flammable item in their loot table or the cooked version of their Meats. Red Hounds always drop 3 Ashes when killed. Ashes are blown away by the wind after being on the ground for 20 seconds (picking it up and then dropping it again resets the timer). Burning a stack of items will yield the same amount of Ashes. For example, burning 40 Twigs will result in 40 Ashes.
Downloadable Content
In the Reign of Giants DLC, the Dragonfly will burn any flammable objects to turn them into Ashes to eat. After eating 20 Ashes, she will fall asleep.
Attention: The following categories are only for the players look up the page based on their first impression, they have nothing to do with the actual categories/behavior/function/tags of these items