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Why do braised chicken feet turn black and harden?
Because the water inside shrinks and dries when it cools, it becomes hard.

Chicken feet, also known as chicken feet, chicken feet and chicken feet, are chicken feet with four fingers and can be eaten. In the recipes of gourmets, chicken feet are not called chicken feet, but chicken feet. In the south of China, chicken feet is a very high-class famous dish, and its cooking method is also very complicated.

Chicken gizzard is the stomach of chicken, also called muscle stomach, so chicken gizzard belongs to a kind of chicken stomach, also called chicken gizzard and chicken liver. Chicken gizzards are produced all over the country. After killing the chicken, take out the chicken gizzard (chicken gizzard), immediately remove the inner wall (yellow film), wash it and dry it in the sun. It can be eaten raw or fried. It has the functions of promoting digestion, guiding stagnation and helping digestion.