The reality is that there are many different types of pesticides used, and different pesticides have different principles in the fight against pests. So only has a function of the disinfectant machine can not be "one man when off ten thousand people can not open", it is impossible to all fruits and vegetables have to play a highly effective pesticide residues effect.
And in the advertisements of various washing machines, manufacturers always present a bunch of "authoritative test reports", and a variety of dazzling experiments. However, this is to take advantage of the consumer's lack of professional knowledge and fooling.
For example, some manufacturers claim that the pesticide degradation rate can reach a fairly high level, in fact, a particular pesticide added to the water, after treatment to determine the amount of the pesticide, resulting in a very high "degradation rate". In fact, this pesticide does not represent the actual pesticides that may be present on fruits and vegetables, and the pesticides in the water are in a completely different state than on the fruits and vegetables.
At the same time, the current market is also very chaotic washing machine, the size of the enterprise size, product quality is mixed, the business arbitrarily exaggerate the phenomenon of product features abound. Some experts say that the diversity of technical disciplines and non-standardization is a common problem in China's dishwasher industry.
Don't be superstitious about dishwashers
The dishwashers on the market now are mainly divided into three types: plasma sterilizers, ozone cleaners and ultrasonic cleaners. It is claimed that these nearly 1,000 yuan price of washing machine can not only remove pesticide residues, kill germs, lower hormones, nutrition, but also remove the growth hormone, lean meat and hookworm virus in meat and seafood and aquatic products in the antibiotic drug residues.
However, for the average consumer, it is difficult to tell whether a vegetable washer is really safe and effective.
Ozone cleaners are the most common type of dishwasher on the market today. In fact, ozone is a strong oxidizing agent, capable of destroying the structure of certain pesticides and causing them to degrade. This type of cleaner is more effective in removing easily oxidized pesticide residues, but experiments have found that using an ozone cleaner to remove pesticide residues not only takes longer, but also requires a higher concentration of ozone.
The usual household ozone cleaner's ozone concentration and action time are not up to the standard of the experiment. What's more, there has been no risk assessment of the hazards of the small molecules produced by the degradation of pesticide residues, which are likely to be higher than pesticide residues.