"If you drink tea without washing the cup, you will die." Why should I wash the cup when drinking tea? What if I don't wash it?

There is a proverb in China, "If you drink tea without washing the cup, you will die." As we all know, tea sets such as teacups and teapots are easy to accumulate tea dirt, but many people don't regard it as an idea and don't like cleaning. After drinking tea, most of them are ready to wash tea. At the same time, many people think that more tea dirt can increase the aroma of tea, and thicker tea dirt can achieve the effect of "no tea and three fragrances". They don't know these habitual knowledge, which is likely to bury serious hidden dangers for themselves.

Tea scale is produced by the oxidation reaction between tea polyphenols and metal rust in tea in the air. Metals such as cadmium, lead, iron, arsenic, mercury and other harmful substances such as nitrite will adhere to the smooth surface of the cup. Tea scale enters the human body with drinking tea, and combines with protein, fat, vitamins and other nutrients in food to form insoluble precipitate, which hinders the absorption of nutrients. At the same time, these oxides can also cause nervous and digestive system dysfunction, and even lead to premature aging. "If you don't wash the cup after drinking tea, the king of hell will kill you." The meaning of these two sentences is that if you don't wash the cup after drinking tea, the king of hell will kill you. In fact, these two sentences are quite right. Research shows that water contains a small amount of heavy metals, which is unclean for a long time and easy to produce dirt. Dirty things stay in the teapot for a long time, which is easy to produce bacteria and will be harmful to human body. Moreover, the dirt accumulated over the years is getting thicker and thicker, and it is becoming more and more difficult to clean up. Therefore, for our health and convenience, we must clean the teapot after drinking a pot of tea.

Traditionally, from the perspective of healthy eating, drinking overnight tea is not recognized. Because of the tea. Not only will it lose nutrients such as vitamins, but it is also easy to rancidity and deterioration, and it is easy to get sick after drinking. Moreover, tea leaves will be cold for a long time, and herbal tea has the side effects of cold coagulation and phlegm coagulation. At the same time, drinking tea for a long time can not be ignored, and it can also cause diseases such as acute gastroenteritis. However, I have never heard of or seen the scene of "drinking tea without washing cups, and the king of Yan is busy with his life". I think this expression may come from "no tea for one night". Jokers often make up rhymes.