Food Wall uses a corn based soy sauce in all of their dishes. I have celiac and have had take out many times without issue! I only order rice, rice noodles, or meat & veggie dishes. Obviously avoid anything deep fried or obviously containing gluten, and you should be good! I don't know much about cross contact measures, but considering the majority of their food is naturally gf, I take my chances and have never been sick!
— Somewhat
— No gluten-free information on the menu
— Most/All
— Excellent