How to detect pesticide residues in tea

Tea is a drink that is deeply loved by people in daily life. It not only has a unique fragrance, but also has many benefits. However, the spraying of pesticides on tea is becoming more and more common nowadays, so it is particularly important to learn how to detect pesticide residues in tea. This is a professional issue, but people can prevent pesticide residues by brewing the tea multiple times and controlling the water temperature for brewing tea.

1 Pesticide residue testing is widely used in the field of tea safety, but relatively speaking, it involves a lot of professional knowledge, which is relatively obscure and difficult to understand, and requires people to explain and illustrate. How to test pesticide residues in tea? Wuhan companies come to see

If tea producers harvest and roast tea leaves ahead of schedule during the safe period for spraying pesticide residues in order to seize the sales opportunity, they will harvest tea leaves with pesticide residues. This will result in the pesticides not being completely volatilized before they are sold on the market. Although drinking tea leaves containing pesticide residues will excrete them through urine or feces, some people will still experience allergic symptoms. The Department of Health reminds the public that it is best to brew tea in two times. Pour out the water from the first brew first to reduce the intake of residual pesticides. The second brew should not be brewed for more than 30 minutes to fully and safely enjoy the fragrance, purity and sweetness of the tea.

3. Some pesticides are fat-soluble and insoluble in water. The test uses organic chemical methods to detect the pesticide residues. However, when using water to make tea, the amount of pesticide residues decomposed is only 10%-20% of the amount detected by organic chemical methods. So in theory, tea made from tea leaves that meet the pesticide residue standards is safe. ”

4 “The average daily tea consumption of Chinese people is less than 10 grams. In addition, most pesticides are insoluble in water. Even if there is a small amount of pesticide residue in tea leaves, the pesticide content in the brewed tea is extremely low. The pesticide intake through tea drinking is also within the safe range and will not pose a health risk to people.”

5 Despite this, tea experts recommend that consumers try not to drink the first cup of tea when drinking tea. In addition to the reasons of pesticide residue, pollution is inevitable during the picking, processing, transportation and storage processes. Moreover, the first cup of real good tea is just to open up and have a bitter taste. Only the second cup can open up and taste the pure fragrance of the tea.

How to detect pesticide residues in tea?

6CSY-N12 portable pesticide residue detector is a specially designed instrument based on the national standard method - rapid test card method (paper method). It is mainly used for rapid detection of organophosphorus and carbamate pesticides in fruits, vegetables, tea, grain, water and soil. It is particularly suitable for on-site law enforcement use by food safety testing agencies at all levels. The portable pesticide residue detector can also be used for on-site testing in fruit, vegetable and tea production bases and agricultural trade wholesale markets, as well as for rapid safety testing before fruit and vegetable processing in restaurants, canteens and households.

7. Learning these professional knowledge well will help companies specializing in tea business to quickly detect pesticide residues, make their tea products safer and greener, gain more recognition and trust from customers, and thus make their companies bigger and stronger.