Tannic acid contained in green tea has bactericidal effect, which can prevent food residues from breeding bacteria and effectively prevent bad breath, so you can drink green tea after meals to prevent bad breath. Drinking green tea often is very beneficial to your health.
Extended data:
Taboos for drinking green tea:
1, avoid drinking tea for the first time.
Because green tea may be polluted by harmful substances such as pesticides in the process of planting and processing, there will always be some residues on the surface of tea, which may be harmful to the body, although the amount is small. Therefore, in order to avoid the impact of pesticide residues on health, the first sip of tea should be poured out. Don't think it doesn't matter, just drink the first sip of tea.
2, avoid drinking new tea
Green tea is not fermented and can be brewed after frying. However, due to the short storage time of tea, it contains more aldehydes and alcohols, which has a strong stimulating effect on gastrointestinal mucosa and is easy to induce stomach diseases. Therefore, drink less new tea and avoid new tea that has been stored for less than half a month.
3, special people avoid drinking green tea.
People with cold stomach should not drink too much green tea, which will cause gastrointestinal discomfort. Patients with neurasthenia and insomnia should not drink tea before going to bed. Breast-feeding women should also drink less tea, because tea has astringent effect on milk. Green tea is also not suitable for drinking during menstruation and pregnancy.
References:
Baidu encyclopedia-green tea