I ordered a bunless burger and they asked me if it was an allergy. I said yes and they immediately shouted down the line, "we have an allergy!!" They even remade my order when one them accidentally cross contaminated by using a pair of gloves which had touched bread. From what I could ascertain - they toast their bread on a separate griddle. So far, I've had no issues or symptoms, so I'd say it's worth checking out.