Is sourdough starter vegan? Sources and aliases

Source dependent

The source or production method of sourdough starter can vary, so it is not always vegan.

Names you may see on a label

Starters pour levainlevadura natural de masa madresurdejskulturSauerteig-Starterlievito madreSauerteigstarterSauerteigstarterkulturenSauerteigkulturenlevadura de masa madresourdough culture

How to verify it

Look for a vegan certification or a manufacturer statement identifying the original source. The ingredient name alone does not settle it.