Cast irons are known for being super durable and are the safest option because they’re not made with a harmful chemical that can leach into the food you’re making. Carbon steel cookware is also safe because it only composes carbon and iron, which are not harmful to you. Moreover, the non-stick coating carbon steel has is natural, and nothing terrible will leak into your food. Cookwares made out of copper and titanium are also safe. The former is free from harmful chemicals; however, some individuals diagnosed with Wilson’s disease should stray from copper because this can accumulate in their organs. Regardless, this is generally safe. Titanium, on the other hand, is a safe metal, and its nonstick feature doesn’t have any harmful chemicals that could affect you. Stainless steels are also safe, but you should always make sure that you’re getting the right or high quality stainless steel. There are cheaply made stainless steels circulating in the market, which could have harmful chemicals that can leak into your food.