Hazards of tea and relation with oral problems

No one knows for sure when and where it is brewed the first cup of tea. According to popular legend, the emperor, "Shen Nung" reign in 2732 BC found in China when tea leaves accidentally fell, his wild pot of boiling water, tea stimulation.

AD and the 4th century, tea, taking into account the many areas in Assam, wild tea tree growth, it is not consciously, to drink tea in India, like China, old China may in some form or other . Tea production of raw materials are usually composed of two leaves and unopened buds of the "two leaves a bud," the formula name, but no longer contains three buds, or even four leaf picking is not uncommon. Recently harvested tea shoots, can be processed into a variety of tea, that is, black tea, green tea, oolong tea, instant tea. Taking into account the manufacturing of black tea (Usually, we drink tea), through the "fermentation" of the material, and in the production of green tea, delicate and subtle flavor, fermented tea has been deliberately omitted.Oolong the middle of the process, "semi-fermented." Instant coffee, instant tea, tea dehydrated products contain only water-soluble components.

Almost no calories does not provide tea, food, beverage is no exception. A cup of tea, with milk and 2 tablespoons sugar 1 teaspoon, yield about 40 calories. Milk contains casein, which makes the tea insoluble tannin, thereby eliminating some of the astringency (acidic effect), in addition to the general milk and sugar, tea contains the marginal amount of vitamins and minerals, but no significant extraction of protein, carbohydrate amount compounds or fat.

Tea is rich in vitamin B group the most. In addition to these, it is also a good vitamin E, K and ?-carotene (changes in our body into vitamin) Source Tea contains copper, fluoride, manganese and other trace elements. Fluoride helps prevent tooth decay in teeth.