Tea is simply divided into the following categories:
1. Natural tea with
(1) Full fermentation. Black tea (fermentation degree is 80-90%) and black tea (fermentation degree is 100%)
(2) semi-fermentation. Yellow tea (fermentation degree is 10-20%), white tea (fermentation degree is 20-30%) and green tea (fermentation degree is 30-60%).
(3) No fermentation. Green tea (zero degree fermentation)
Of all the tea leaves, green tea contains the most caffeine, but it should be used with caution for those with cold nature, bad stomach and poor sleep.
2. Tea drinks.
Caffeine basically contains no refreshing effect, mainly cold stimulation to refresh.
3. herbal tea. Such as ginseng tea and herbal tea. It has a certain refreshing effect.
It is a traditional habit of China people to drink tea to refresh themselves and preserve their health. However, due to the influence of tea varieties, production methods and brewing methods, the refreshing effect cannot be guaranteed. Modern people's fast pace and quick refreshing requirements (such as being sleepy while driving) have faster and more convenient products. Here is a high-tech refreshing sticker (such as "ice refreshing sticker") that can refresh your mind immediately when you are sleepy or tired. It can last for more than four hours, and the discomfort in the head will soon disappear. It is safe and convenient. People who are tired or sleepy when driving, working or studying can use it at any time.