Is the casserole stew delicious?

Casserole stew smells delicious and is often not eaten well. Northeasters like stews best, especially when it is cold, and they often like to cook in casserole. Such as stewed chicken with mushrooms, stewed pork with vermicelli, stewed sauerkraut with white meat and blood sausage, stewed beef with potatoes and so on. Casserole stew certainly has its unique flavor, but eating casserole often is harmful to human health. Because ordinary casseroles are mainly clay, feldspar is added and fired at high temperature. Stewed in this pot for too long, protein, the raw material of animal food, degrades, the solubility of water is weakened, and a large amount of gelatinous liquid is precipitated, which increases its toughness and tastes bad, which is not conducive to human digestion and absorption. The average loss rate of vitamin B 1 and B2 in casserole stew is about 89%, and the loss rate of vitamin C is as high as 100%. In addition, it is difficult to escape the odor substances in the raw materials because of the strict sealing when stewing in casserole. There are also some valeric acid, valeraldehyde and lower fatty acids in raw materials and soup, which will produce substances harmful to human body in thermal reaction. Some earthenware products in casserole are sintered with glaze, in which harmful substances such as lead and arsenic will overflow due to repeated heating analysis, and inorganic substances such as feldspar and timely will also escape. If you eat it for a long time, even if you eat less, it will lead to chronic poisoning. Therefore, casserole stew should not be eaten often.