The owner is very aware of what is and isn't GF. They do not have a dedicated fryer, but he says if you call he can tell you when they change the oil and if anything with gluten has been in there. I believe he said they usually change it Sundays.The food is delicious, but obviously avoid the fries but they can sub out with veggies. Make sure to ask for your food gluten free as a few dishes like their picadino uses flour as a thickener. They are more than happy to leave it out and it doesn't change the taste at all.The food is very good and I would say it is one of the best Portuguese BBQ style restaurants in the area.