Avoiding gluten cross-contamination at home

You don't need a separate kitchen. You need a few habits in the spots where crumbs and shared tools actually cause trouble. Here's what matters and what doesn't.

The things that truly matter

• The toaster. Crumbs are the classic culprit. Get a dedicated gluten-free toaster, or use toaster bags.
• Double-dipping condiments. A knife that touched wheat bread then went back into the butter, jam, or peanut butter contaminates the whole jar. Use squeeze bottles or a “clean spoon” rule.
• Colanders and porous tools. Wooden spoons, old scratched nonstick, and colanders that strained wheat pasta hold on to gluten. Replace or dedicate them.
• Shared flour in the air. Wheat flour becomes airborne and settles for hours. If someone bakes with it, wipe surfaces before you cook.

The things that matter less

A dishwasher on a normal cycle cleans dishes fine. Metal pots and pans that are washed properly are fine. You don't need to throw out your whole kitchen — you need to control crumbs, shared porous tools, and double-dipping.

A simple shared-kitchen system

• Store gluten-free food on the upper shelves (nothing crumbs down onto it).
• Label a couple of condiments “GF only.”
• Prep gluten-free food first, on a clean surface, before the wheat stuff comes out.
• Keep a dedicated toaster and colander.

That's most of the battle. For packaged food, let our verdicts and recall alerts handle the vigilance so you can relax at home.