The kitchen is the birthplace of healthy food, but there are many unsafe factors hidden in the kitchen, not all of them are poor tableware, which is harmful to health. Look at the following you will understand.
Copper tableware: it is gorgeous in appearance, golden in color, and very imposing, like a copper hot pot. A small amount of copper dissolved when cooking food in a copper pot is also beneficial to human body. However, copper rust can produce two kinds of toxic substances: Copper Green (i.e. basic copper carbonate) and blue alum (i.e. copper sulfate pentahydrate), which can cause nausea, vomiting and even poisoning. Therefore, for long-term use, produce copper rust copper tableware, do not use again.
Stainless steel tableware: beautiful, light and durable. Stainless steel is made of ferrochrome alloy mixed with nickel, molybdenum, titanium, manganese and other trace metal elements, which are harmful to human body. Therefore, it should be noted that salt, soy sauce, vinegar, etc. should not be stored for a long time, and traditional Chinese medicine should not be cooked with stainless steel tableware, which is easy to lose efficacy, and some even produce toxic compounds.
Glassware: clean and sanitary, free of toxic substances, but sometimes' moldy '. This is because the glass has been eroded by water for a long time. The sodium silicate in the glass reacts with the carbon dioxide in the air to form white carbonate crystal, which is harmful to human health. Therefore, it can be removed with alkaline detergent when it is used.