The Witcher

Han is an alchemy ingredient that can be found throughout the fields surrounding Murky Waters in Chapter IV.

Journal Entry source

• After completing the Daily Bread quest, Geralt can give any meat food to the elves in and around the cave. Any elf inside the cave at night will unlock han and mandrake root journal entries in return.
• Ritual Plants

The Witcher 3: Wild Hunt

Han fiber is an alchemy ingredient that is used to craft the following items:

It can be found as random loot, gathered from plants, received as reward for completing Practicum in Advanced Alchemy, or purchased from the following merchants:

• All herbalists except the ones in Hierarch Square and Heddel
• Gremist at Gedyneith
• Jonna in Rannvaig
• Keira Metz
• Merchant in the Fish Market in Novigrad
• The Pellar near Blackbough