Zisha misconception of raising "tea mountain"

There has always been such a proverb among the people of our country: a cup of tea in the early morning will starve to death the medicine seller, which shows that the health care effect of tea is extraordinary. At the same time, there is a saying in our country: drinking tea without washing the cup, the king of Hades urges his life, that is, although tea is good for health, but the wrong habit of drinking tea will bring the opposite result, "not washing the tea cup frequently" is the most common one.

Scientific studies have shown that drinking water contains minerals and trace amounts of harmful heavy metal ions, such as cadmium, mercury, arsenic, etc. When the water is heated, with the increase of water temperature, the solubility of some calcium and magnesium ions decreases, and the concentration of insoluble salts increases, and the precipitation is precipitated when the water is concentrated to a certain extent. These precipitates can enter the teacup with the water to brew tea, and quickly oxidize together with the tea to produce brown tea rust, which contains cadmium, lead, mercury, arsenic and other harmful metals. Li Hongzhu, an associate professor at Tianjin Institute of Materia Medica, once said in an interview: "Tea scale contains cadmium, lead, mercury, arsenic and other toxic substances as well as carcinogens such as nitrite, which enter people's digestive system and combine with proteins, fatty acids, vitamins and other foods to form insoluble precipitates, which not only hinders the absorption and digestion of these nutrients by the human body, but also damages organs such as the stomach and intestines." "In addition, teacups that are often not cleaned have more limescale, which also contains a lot of heavy metals, which is extremely bad for health. At the same time, these oxides can also cause neurological, digestive, uropoietic and hematopoietic system lesions and dysfunction, especially arsenic and cadmium can cause cancer, cause fetal malformations, and endanger health.