Cleaning tea stains from thermos cup

Thermos bottles seem to have become a characteristic of middle-aged greasy men, but in fact, thermos bottles have many uses in daily life. When you make tea, put it in a thermos cup to test the water temperature and keep it for a while. When using a thermos cup, tea stains are inevitable. Some people find it difficult to clean tea stains from thermos cups. At this time, you must master some methods to completely remove the tea stains. Let's take a look at this aspect.

1. Add water to a teapot or teacup, put in potato peels, heat to boil, rinse after cooling, and it can be easily cleaned.

2. When using a metal tea strainer, it will become black due to tea stains. If it cannot be washed off with a medium-sized detergent, you can soak it in vinegar or bleach to easily remove the stains.

3. Apply table salt on the inside, especially where there is tea stain. Then scrub the teacup vigorously with a toothbrush and finally rinse it with clean water.

4. Tea stains have been deposited for a long time and are difficult to clean. Soak them in heated rice vinegar or baking soda for a day and night, then scrub them with a toothbrush to easily clean them. It should be noted that if you are using a purple clay teapot, you do not need to clean it in this way. The purple clay teapot itself has pores, and the minerals in the tea scale can be absorbed by these pores, which can maintain the teapot and will not cause harmful substances to "run" into the tea and be absorbed by the human body.

Cups that are covered with tea stains for a long time can cause cancer

Li Hongzhu, associate professor at Tianjin Pharmaceutical Research Institute, once said in an interview: "Tea scale contains toxic substances such as cadmium, lead, mercury, arsenic, and carcinogens such as nitrite, which will adhere to the smooth surface of the teacup. As the tea enters the body and enters the digestive system, it combines with the protein, fatty acids, vitamins, etc. in the food to form insoluble precipitation, which not only hinders the body's absorption and digestion of these nutrients, but also damages organs such as the stomach and intestines. In addition, tea cups that are not often cleaned will retain more scale, which also contains a large amount of heavy metals, which is extremely harmful to health."