Is Isinglass Vegan?
No — Isinglass is not vegan.
Why
Isinglass is a form of collagen made from the swim bladders of fish, used as a fining agent. It is not vegan.
Where you'll find it
- Some beers
- Some wines (fining)
- Cask ales
Vegan alternatives
- Bentonite clay
- Pea protein fining
- Activated charcoal
Frequently asked questions
Does isinglass stay in the drink?
Mostly it is filtered out, but trace amounts can remain, and vegans avoid drinks fined with it regardless.
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