In-N-Out Burger announced ingredient changes to several core menu items, including removing sesame flour from its hamburger buns across ten states. The company said even trace sesame flour can trigger severe reactions for people with sesame allergies.
WHO:In-N-Out Burger
WHAT:Removed sesame flour from hamburger buns and made other ingredient modifications to core menu offerings.
WHEN:Reported Sep 8, 2026 at 6:02 PM ET
WHERE:CA
WHY:The company said sesame flour can trigger severe reactions in people with sesame allergies.
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