Cold tea making, that is, making tea with cold water, can be said to subvert the traditional way of making tea. Office workers, class people, car drivers, climbers, etc. Wherever you go, as long as you can buy mineral water, you can always drink delicious and healthy herbal tea. So what kind of tea is suitable for herbal tea? What is suitable for herbal tea? Green tea, micro-fermented oolong tea, Baihao Yinzhen in white tea and Bai Mudan are all suitable for cold soaking. The lower the degree of fermentation, the weaker the fermentation, the healthier the tea, and the better the taste when it is cold brewed. It is best to choose fresh tea for cold tea, so as to drink a mellow taste. Black tea, Tieguanyin tea and Pu 'er tea with high degree of fermentation are not suitable for cold soaking, and the brewed tea tastes bitter and has no aroma. The soaking time of different tea leaves will be different. For example, oolong tea and alpine tea should be soaked for three or four hours, and some green tea will taste in 20 or 30 minutes. It is best to use mineral water or cold boiled water for herbal tea, which tastes slightly worse. Herbal tea should not be kept for too long. Try not to drink herbal tea for more than 8 hours to avoid hurting your stomach. People with cold constitution had better not drink herbal tea. After taking herbal tea out of the refrigerator in summer, try to finish it within two hours. Making herbal tea by yourself is hygienic, environmentally friendly and saves money. It can not only promote fluid production to quench thirst and remove greasy food, but also has special effects on lowering blood pressure and uric acid. Make herbal tea, prepare tea, prepare water and prepare tea sets. Tea leaves should be soaked in hot water more than usual, and special tea bags can also be used. It is best to use cold boiled water or pure water, and try not to contain too many minerals. Generally speaking, you need 10 ~ 15g of tea per 1000ml of water. Put the tea in the bottom of the pot, pour it into cold water, let it stand at room temperature for 3-4 hours, take out the tea, and then put it in the refrigerator for thorough cooling. Some people are used to putting it in the refrigerator at the beginning and waiting for 8 hours before filtering out the tea to drink. Change the tea bag and tea powder, and it will take half an hour to an hour. The benefits of drinking herbal tea 1. There are "catechins" and "tea polyphenols" left in tea, which can effectively promote gastrointestinal peristalsis and defecation, and have a very effective role in losing weight and preventing cancer. 2. Cold soaking of tea can reduce the release of tea tannin, reduce the bitterness of tea and increase the taste of tea. 3. The body temperature of cold-soaked tea leaves is higher than that of tea soup, and ketones with aromatic molecules will gradually evaporate after the tea soup reaches the mouth, making it more fragrant, filling the whole mouth and having a stronger throat rhyme. Cold soaking can reduce the caffeine content of tea soup and slow down the stimulation to the stomach, which is suitable for people with sensitive constitution or weak stomach. 4. At normal temperature and low temperature, the substances contained in tea will be released at a very slow speed, and the sweet amino acid molecules will be dissolved first. Catechin, tea polyphenols and other beneficial ingredients are no less than herbal tea. Theophylline is a bitter source and is unlikely to be released in cold water. According to research, the content of caffeine is less than three-quarters of that of hot bubbles, so it is less harmful to the stomach and less harmful to sleep. It is said that lowering blood pressure and uric acid is particularly effective.