They are great about not cross contaminating. When I order a paleo doughnut they ask if they need to change their gloves and put it in a separate box. You would never guess that the paleo doughnuts are paleo because they are so good. I wish I was able to try the 100 layer doughnut. I have seen gf cookies and doughnuts there but I haven't tried them to see if it really is gf but I think it is considering how careful the are with the paleo ones.