No, celiacs cannot cook with gluten, as even a tiny amount of gluten can trigger an immune response and cause damage to their small intestine. Those with Celiac disease must strictly adhere to a gluten-free diet and should avoid cross-contamination, which can occur when gluten-free foods come into contact with gluten-containing foods, utensils, or surfaces. Celiac disease sufferers should even go as far as avoiding regions where particles of gluten may be inhaled through gluten-containing flour dust in the air for at least 24 hours after contamination.