I want to buy a crockpot but not sure if its safe. Any clarification would be great. Is it safe to use with a cockatiel in the house? is it lined with non stick coating so its out of the question? or is it just the liner bags that shouldnt be used?
Teflon is simply a brand name of PTFE based coating. PTFE is absolutely still used in many popular cookware lines, like T-Fal's classic nonstick. It is VERY toxic to birds when heated.
PFOA was a component of some nonstick coatings that has mostly been phased out. Maybe you were thinking of that?
Crock pots are usually enameled ceramic. They are safe. Just keep in mind the newer ones get much hotter than the old ones, so they cannot be left unattended for long hours and must be at least 3/4 full to avoid burning the food.