Silk is created by obtaining Gossamer and then turning it into Silk. This can be done directly on the player. Silk is used in several different recipes later in the game.

Where do you get silk in Conan?

Silk is a valuable commodity in the Hyborian kingdoms and it flows from Khitai in the east and Stygia in the south. Khitan silk is drawn from silkworms whereas Stygian silk is harvested from the giant spiders that inhabit the dark reaches of the southern lands.

How do you get silk from grubs in Conan exiles?

Notes
Fat Grubs will generate from a Compost Heap whenever. Compost is present, up to a single stack of 50.They will quickly expire without. Compost present.The “Extract Silk” recipe to make Silk from. Fat Grubs requires a Tanner thrall in the station.

Gossamer can be acquired from spider eggs, with a bonus when using a sickle.

It can also be harvested from the following creatures while using a sickle:
Black Widow.Blue Widow.Demon Spider.Giant Spider.Green Widow.Red Widow.Redmouth Spider.Spider (Brown)