Can you cook the danger out of expired food?
Well, expiration date is there to tell you when the food is no longer safe to eat it. Frozen items however can be consumed past their expiration date but only if they are not "touched" by freezer burn.
No. There are two ways by which microbes make food unsafe - either by the presence of the germs themselves, or by the toxins that they create. Heating the food will kill enough microbes. However, some of the toxins that they've left behind are heat-stable, and it isn't possible to cook the food enough to destroy them (without turning the food to charcoal).
the danger zone is the temperature zone in which bacteria can be culture. so, if you have something cooking between 40 *F and 140*F you will most likely give food poisoning to those you are serving the food to. hens the term, danger zone, it is dangerous to cook food in that specific temperature range.
Expired food oil may have become oxidised and if this is the case, it will taste rancid. The rancid taste will permeate the food in which it is used and the food will not be nice to eat. However, if the oil is expired but still smells and tastes OK then it is OK to use - Sometimes the expiration dates are a bit conservative.