Don’t confuse hoisin sauce with fish sauce or oyster sauce.
Most hoisin sauce is vegan, while fish sauce is of course not vegan.
Hoisin sauce is typically made with soybeans and a collection of spices.
This may include:
- Xanthan Gum
I’ve yet to come across a hoisin sauce with animal products in it, but let me know if you have.
You might notice that some hoisin sauces are labelled “vegetarian” while some aren’t, particularly in Asian countries.
It has to do with garlic and onion not being suitable for strict vegetarian buddhists. Don’t be concerned by it, you can get either kind as a vegan and be fine.
The only potential issue is that some hoisin sauces contain artificial colors like Red #40, Yellow #5, etc.
Many vegans don’t eat artificial colors because of animal testing that surrounds them. Keep an eye out for them on the ingredients label if you’d like to avoid them.