While aluminum foil can be used in some cooking applications, it is not recommended for stir-frying or sauteing due to its low melting point and potential for tearing. Aluminum foil can melt at high temperatures, which are often used in stir-frying and sauteing, leading to a fire hazard or uneven cooking. Additionally, the foil may tear or puncture easily, releasing aluminum particles into the food, which is not safe. Instead, use proper cookware like non-stick pans or stainless steel for these cooking methods.