The lunch box is the easy part. The table is the danger.

The safest way to pack a peanut-allergic kid’s lunch is to use a dedicated lunch bag, pack only foods you’ve verified, and teach the kid a hard rule: eat your own food, touch no one else’s.

Your own kitchen is the first place cross-contamination happens. Use a lunch bag that’s only ever carried your kid’s food — never one that’s hauled peanut butter sandwiches. Wash your hands before packing. Don’t reuse containers that held peanut products without a hot soapy scrub. And check labels on everything, including bread and granola bars, for “may contain peanuts.” If the label says that, treat it as a no.

The bigger risk is at school. Other kids’ lunches hit the same table, crumbs spread, and kids swap food without thinking. That’s why you want a clearly labeled bag and a conversation with the teacher about an allergy-safe table. If the school has one, use it. If not, send a placemat or napkin so your kid’s lunch isn’t sitting directly on a shared surface.

And teach the rule before the first day: you eat what’s in your bag, you don’t take food from friends, and you don’t offer yours. For a young kid, that rule is the real safety net. If they want a peanut butter–style sandwich, SunButter or WowButter taste close enough that most kids won’t complain.

The rule matters more than the brand of butter you pick.