We have been to brewers alley at least 100 times over the last few years and have never had any issues. It is my go to restaurant in downtown Frederick.
Many gluten free options marked on the menu (plus they have a separate frier) just explain to the waiter that you have celiacs.
Only complaint is that food quality is hit and miss. Sometimes everything is perfect and sometimes the food is not up to par.
— Very
— Most/All
— Good