It is advisable to use ceramic pots and cups for tea, but not thermos cups. Because the tea is brewed in a thermos cup, the tea is kept at a high temperature for a long time, and a part of the aromatic oil in the tea escapes, which reduces the fragrance; the tannic acid and theophylline leached out are too much and have a bitter and astringent taste, which also loses part of the nutrients. Most people throw away the used tea after making tea. In fact, this is not economical.

You should chew the tea and swallow it, because the tea contains more carotene, crude fiber and other nutrients. To make a cup of moderately concentrated tea, you generally need about 10 grams of tea. Some people like to make strong tea. If the tea is too strong, too much caffeine and tannic acid will be leached, which is too irritating to the gastrointestinal tract. After making a cup of tea, you can refill the water and make another 3-4 cups.