Most gluten free bread tastes better when toasted or heated up. If you want to toast some gluten free bread or a gluten free bagel in a toaster that is not gluten free, you can wrap the toast or bagel well in some tin foil before toasting. This won’t always work, but it is worth a try if you are really stuck. It works better in a toaster oven or a wide toaster.
Kim - I agree on the toasting but I am still concerned about the food contact with hot aluminum — we know aluminum is a powerful neurotoxin. When I am not at home with a gluten free toaster oven, I use parchment in the toaster oven, maybe with foil underneath, depending on how high the heat is (I hope the parchment serves as a barrier? Not sure)