metal cookware react with food?

Yes, metal cookware can react with food. The type of metal and the acidity of the food can affect the extent of the reaction. For example, acidic foods like tomatoes or vinegar can react with aluminum cookware, causing the aluminum to leach into the food. This can be harmful to health, as aluminum has been linked to Alzheimer's disease and other health problems.

Other metals that can react with food include copper, iron, and zinc. Copper can react with acidic foods to produce a metallic taste, while iron can react with oxygen to form rust. Zinc can also react with acidic foods to produce a metallic taste.

To avoid the potential health risks of metal cookware, it is best to use cookware made from non-reactive materials such as glass, ceramic, or stainless steel. If you do use metal cookware, be sure to avoid cooking acidic foods in it.