Food·Posted on Feb 26, 2018Can You Reach The End Of This Quiz Without Eating Gluten?It's harder than you'd think.by Ailbhe MaloneBuzzFeed StaffFacebookPinterestTwitterMailLink The rules: We'll present a food, and ask "does this food contain gluten?" There are no trick questions, and we're assuming that each item has been produced in a factory with no cross-contamination. Does sourdough contain gluten? Getty Images YES Correct Incorrect YES NO Correct Incorrect NO Correct! Wrong! Sourdough bread contains gluten. However, if sourdough is prepared in a traditional way, then the gluten is broken down over a period of long fermentation before baking the Guardian reports. Does couscous contain gluten? Getty Images YES Correct Incorrect YES NO Correct Incorrect NO Correct! Wrong! Couscous contains gluten. Does soy sauce contain gluten? Getty Images YES Correct Incorrect YES NO Correct Incorrect NO Correct! Wrong! Soy sauce contains a small amount of gluten. Soy is gluten free, but gluten is added (via wheat) in the fermentation process to make soy sauce. Does Sriracha contain gluten? Getty Images YES Correct Incorrect YES NO Correct Incorrect NO Correct! Wrong! Sriracha is gluten free Do Chicken McNuggets contain gluten? Getty Images YES Correct Incorrect YES NO Correct Incorrect NO Correct! Wrong! Yep, there is wheatflour in the batter. Do cornflakes contain gluten? Getty Images YES Correct Incorrect YES NO Correct Incorrect NO Correct! Wrong! Cornflakes contain barley malt extract as a flavouring, which contains gluten. Do Reese's Pieces Peanut Butter Cups contain gluten? Getty images YES Correct Incorrect YES NO Correct Incorrect NO Correct! Wrong! Reese's Pieces Peanut Butter Cups are gluten-free. Do Oreos contain gluten? Getty Images YES Correct Incorrect YES NO Correct Incorrect NO Correct! Wrong! Oreos contain gluten. Does Wrigley's Extra peppermint gum contain gluten? Wrigleys YES Correct Incorrect YES NO Correct Incorrect NO Correct! Wrong! Peppermint Extra gum is gluten free but other Wrigleys gums contain gluten.