Sinew Processing

Sinew is dropped by most large animals, and can be processed into Sinew String.

The first step in processing sinew is placing it on the ground to dry. This takes 48 hours (two in-game days) and yields Dried Sinew.

Drying Sinew

Once sinew has dried, it can be pounded on an anvil to make Pounded Sinew.

If you do not yet have a metal anvil, you can also perform this operation on a Primitive Anvil.

Finally, the Pounded Sinew can be crafted into Sinew String.

Among other things, Sinew String can be used as a tool binding to give your stone tools the Perfectly Forged! trait.