Pine eggs, also known as leather eggs, egg transformations, grey buns, etc., are a traditional Han-style egg product. Tastes soft and fragrance is unique. The main raw materials for the production of leather eggs are lime, pure alkaline, salt, red tea and plant ash. Not only are they popular with a wide range of domestic consumers, but they are well known in international markets. After special processing, pine eggs become black and bright, with white raisins on them, and a special scent comes in. Pine eggs, not only delicious but also of some medicinal value. As Wang Shihung says in his diet, “Eggs, tastes, bitterness, gynth, saltyness, can quench heat, wake up alcohol, go to the big intestines, treat diarrhea, and dwindle.” The Chinese doctor considered the skin and eggs to be cold and to treat diseases such as eye pain, tooth pain, hypertension and dizziness. Traditional practices include lead oxide, which is a toxic heavy metal element, so it is often said that lead is not easy to eat in leather eggs; although the technology is now improved into lead-free eggs; although we like to eat it, it is rare to buy it, and only for spring seasons. Just..