Does freezing reduce histamine? (Short answer: no)

Freezing is often thought of as a reset button for food.

It isn’t — at least when it comes to histamine.

Histamine forms before food is frozen, as proteins break down over time.

Once histamine is present, freezing can slow further changes, but it doesn’t remove what’s already there.

Reheating doesn’t help either. Histamine is heat-stable.

For most people, frozen food is perfectly fine.

But for those sensitive to histamine, how fresh the food was before freezing matters more than freezing itself.

That’s why freshly cooked food can feel easier to handle than the same food cooked, frozen, and reheated later.