Sap Valheim 1.0.20
Sap is a crafting material that stacks to 50 in Valheim. It is used to craft Bile Bomb and build Eitr Refinery.
“Sacred blood from the Great Tree.”
Sap is a material described in the game as "Sacred blood from the Great Tree." It weighs 0.2, stacks up to 50 and can be teleported.
Sap is an ingredient in several recipes. You use it to craft the Bile Bomb, Marinated Greens, Sizzling Berry Broth, Sparkling Shroomshake and Yggdrasil Porridge. It is also needed for four mead bases: Mead Base: Lingering Eitr, Mead Base: Minor Eitr, Mead Base: Lingering Health and Mead Base: Lingering Stamina. On the building side, Sap is used to build the Eitr Refinery.
Used to craft
Bile Bomb, 
Marinated Greens, 
Mead Base: Lingering Eitr, 
Mead Base: Lingering Health, 
Mead Base: Lingering Stamina, 
Mead Base: Minor Eitr, 
Sizzling Berry Broth, 
Sparkling Shroomshake, 
Yggdrasil Porridge.
Used to build
Other material items
Acorns, 
Amber, 
Amber Pearl, 
Ancient Bark, 
Ancient Coin, 
Ancient Metal, 
Ashlands Gourmet Bowl, 
Ashwood, 
Asksvin Bladder, 
Asksvin Hide, 
Asksvin Neck, 
Asksvin Pelvis.