Why is aluminium a good metal for non stick frying pans?

Aluminium cookware requires the use of a non-stick coating, such as Teflon, in order to prevent food from sticking. Over time, this coating can wear off or be damaged, which can make the cookware less effective. Additionally, aluminium cookware can react with certain foods, such as acidic or alkaline foods, which can cause discolouration or pitting of the cookware.

Therefore, while aluminium is a lightweight and affordable metal, it is not the most suitable choice for non-stick frying pans due to its lack of natural non-stick properties and potential for reacting with food. Instead, other materials such as stainless steel or cast iron are often preferred for non-stick cookware.