Kosher all year around
Description: Tartaric acid (L(+)-) (acid) (antioxidant)
Function: antioxidant
Rationale:
OU/cRc: tartaric acid/cream of tartar is a byproduct of wine-barrel deposits, commonly from non-kosher wine, requiring reliable kosher certification. [Merge override: OU halacha-yomis ruling on refined tartaric acid/cream of tartar applies to the whole tartrate family, not just E336/E337.]
If you don't see a status above, it does not mean the additive is not kosher automatically - it might just not be documented in our database yet.