Kosher all year around
Description: Potassium sulfite (preservative)
Function: preservative
Rationale:
Potassium sulfite is chemically identical in class to the other sulfites in this sequence (E221-E228), all synthetic/inorganic with no kashrut concern; blank value filled to match siblings.
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.