Definitely well trained if you let them know your order is "gluten allergy" which will result in a protein style (lettuce wrapped) burger. They will not only change gloves, but clean and use a different grill top, and notify the kitchen to take care with fries as well. We have been here numerous times, have never been "glutened", and the one time they made a mistake, they completely remade everything quickly and without any hassle. Definitely a go-to place for us.
Since everything is on the "hidden" menu here, just say gluten allergy and they will let you know your options. It's essentially a gluten-free menu.
Order "protein style" to get it wrapped in lettuce
In & Out seems to have trained very well about gluten. At every location, just say Gluten Allergy and they're totally on top of it, they flag your order, call it out to other employees, they all know what to do. SO reassuring. The Protein Style with lettuce wrap is very good and i hardly notice the lack of bread. Fries in dedicated fryer..
I’ve gotten animal fries here a bunch of times with no issues. When ordering tell them to mark it as a gluten allergy. They know to change gloves and not touch/cross contaminate with gluten.
I have not tried the burgers lettuce wrapped because there is a huge risk of cross contact/contamination for burger.
Visited twice with no gluten reaction. They claim everything in the restaurant is gf except for the buns. They offer burgers protein style substituting lettuce for the bun. Self serve endless refill soft drinks. Fast food chain but better burgers than others. The fries are also gf.
This is the only restaurant I have eaten at regularly and not had any issues. Tell them you have a gluten allergy, they will prepare your burger in a separate spot and serve it in its own basket. Everything in the restaurant is gluten free except for the bun. So eat those fries, dip them in spread, enjoy that delicious burger even if it is in a lettuce wrap.