Pesticides are a double-edged sword. When used properly, food and fruit and vegetable production can reduce harm and increase income. If used improperly, the residue will be too high, which will bring hidden dangers to people's health. So how do you identify vegetables and fruits with pesticide residues? 1. Most of the abnormal shapes and colors are pesticide residues and fruits and vegetables. Vegetables with normal shape and color are generally cultivated by conventional methods and have not been treated with chemicals such as hormones, while abnormal vegetables may have abused pesticides and fertilizers. Second, do not buy more insect vegetables. Among the many vegetables, some vegetables are susceptible to pests, which can be called worms. Some vegetable worms do not like eating. They can be called worms. This is the specificity of the different ingredients and odors of vegetables. Sexual decision. Among the worms, there are mainly vegetables, Chinese cabbage, cabbage, cauliflower, etc.; the few insect vegetables include sage, lettuce, celery, carrot, onion, garlic, leeks, scallion, parsley, etc. Due to the large number of pests, the worm-eaten vegetables have to be sprayed regularly, which is bound to form pesticide residues; the case of less insects and vegetables is the opposite. In order to avoid excessive intake of pesticides, you should choose to eat less insects as much as possible. The worms that we usually see in the vegetables have more wormholes. It seems that they have not taken medicine. It is safe to eat this dish. In fact, this is unreliable. Third, do not buy vegetables with a large amount of fertilizer. Due to the large amount of chemical fertilizer applied, especially the application of nitrogen fertilizer (such as urea, ammonium sulfate, etc.) is too large, it will cause nitrate pollution of vegetables. Nitrate itself is not very toxic, but it will be reduced to nitrous acid as it enters the gastrointestinal tract. Nitrous acid is then combined with secondary amines in the gastrointestinal tract to form nitrosamines, a carcinogen. We should eat as much as possible of melons, fruits, beans and edible fungi, such as cucumbers, tomatoes, edamame, mushrooms and so on. However, these measures are also artificially identified, and it is often impossible to determine whether or not pesticides are contained in fruits and vegetables with the naked eye. Nowadays, the pesticide residue speed measuring instrument is generally used to quickly determine whether there are pesticide residues in fruits and vegetables. The light source uses light-emitting diodes, which have the advantages of energy saving, environmental protection, power saving, long life and fast response. The pesticide residue speed measuring instrument has no mechanical moving parts, anti-interference, anti-vibration, stable and reliable performance. The instrument has high sensitivity and the minimum detection limit for pesticides such as methamidophos, omethoate, phorate, parathion, methyl parathion and dichlorvos is better than the national standard. More accurate and faster than manual recognition. Pe Disposable Shoe Covers,Disposable Shoe Covers,Nonsterile Single Use Shoe Covers,Non Sterile Shoe Covers Henan Xianghe Medical Materials Co., Ltd. , https://www.xiangheweicai.com