Moreover, in the advertisements of various vegetable washers, manufacturers always come up with a bunch of "authoritative test reports" and various dazzling experiments. However, this is all a scam that takes advantage of consumers' lack of professional knowledge.
For example, some manufacturers claim that the degradation rate of pesticides can reach a fairly high level. In fact, they added a specific pesticide to the water and measured the amount of pesticide after treatment, thus obtaining a high "degradation rate". In fact, this pesticide does not represent the pesticides that may actually exist on fruits and vegetables. The state of pesticides in water is completely different from that on fruits and vegetables.
At the same time, the current vegetable washer market is also very chaotic, with enterprises of different sizes and uneven product quality, and the phenomenon that merchants exaggerate product functions at will is everywhere. Some experts said that the diversity and irregularity of technical schools are common problems in China's vegetable washing industry.
Don't be superstitious about the vegetable washer to remove pesticide residues.
There are three kinds of vegetable washers in the market: plasma sterilizer, ozone cleaner and ultrasonic cleaner. It is said that these vegetable washers, which cost nearly 1,000 yuan, can not only remove pesticide residues, sterilize, reduce hormones and maintain nutrition, but also remove growth-promoting hormone, clenbuterol, hookworm virus and antibiotic drug residues in seafood and aquatic products.
But for ordinary consumers, it is difficult to tell whether the vegetable washer is really safe and effective.
Ozone washer is the most common vegetable washer in the market at present. In fact, ozone is a strong oxidant, which can destroy the structure of some pesticides and degrade them. This cleaning machine has a good effect on removing easily oxidized pesticide residues. However, it is found that it takes not only a long time but also a high ozone concentration to remove pesticide residues with ozone cleaner.
Usually, the ozone concentration and action time of household ozone cleaners can't meet the experimental standards. More importantly, the harm of small molecular substances produced by the degradation of residual pesticides has not been evaluated, and the risk of these substances may be higher than that of pesticide residues.