Pesticides can be sprayed during tea planting.

1. Except for the tea trees that are certified as organic tea gardens, pesticides are not allowed to be sprayed during the planting process. In other cases, pesticides are generally sprayed. Pollution-free or green certification only restricts the use of highly toxic pesticides. Drinking organic tea should be free of pesticide residues. (Pesticide residues, heavy metals, and harmful microorganisms are among the key controls).

2. In standardized tea production, no pesticides are allowed to be sprayed half a month before picking fresh leaves. This is restricted by the industry, and the state will also conduct sampling quality inspections. Standardized tea pesticide residues have a certain range of control, and if it exceeds the limit, it cannot leave the factory.

3. Most pesticides are insoluble in water and have low content. They will not dissolve in the tea soup during the brewing process.

4. It is best not to eat the tea residue, so Pesticide residues that are insoluble in water may be ingested.

Tea contains many ingredients, nearly 500 kinds. Mainly include caffeine, theophylline, theobromine, choline, xanthine, flavonoids and glycosides, tea tannins, catechins, terpenes, phenols, alcohols, aldehydes, acids, esters, Aromatic oil compounds, carbohydrates, multivitamins, proteins and amino acids. Amino acids include cysteine, methionine, glutamic acid, arginine, etc. Tea also contains calcium, phosphorus, iron, fluorine, iodine, manganese, molybdenum, zinc, selenium, copper, germanium, magnesium and other minerals. These ingredients in tea are beneficial to the human body, especially manganese, which can promote the formation of vitamin C in fresh tea and improve the anti-cancer effect of tea. Their synergistic effects are of great significance to the prevention and treatment of diseases in the human body, so there is a saying that "you cannot live without tea for a day".