1. Bitter skin and seeds of lemon: The skin and seeds of lemon contain bitter substances, which will penetrate into lemon juice during the production process, affecting the taste of chicken feet. When lemon slices or lemon juice come into contact with chicken feet, bitter substances will penetrate into chicken feet, resulting in bitter taste of chicken feet.
2. Chemical composition of bitter substances: The peel and seeds of lemon contain a chemical called limonin, which is a bitter compound. When the skin and seeds of lemon come into contact with chicken feet, limonin will dissolve into chicken feet and produce bitterness.
3, lemon is divided into yellow lemon and green lemon: use yellow lemon to make lemon pickled chicken feet, be sure to remember to peel, otherwise it will be bitter after soaking for a while, and the source of bitterness is lemon seeds and lemon peel.