The instrument for washing vegetables in water is a fruit and vegetable purifier.
Most of these products use purification technologies such as ozone, ultrasonic purification or water catalyst. Ozone products have basically been eliminated on the market. The effect of ultrasonic purification depends on the power. Water catalyst technology has the risk of secondary products. From the perspective of basic functional principles, these purifiers are of little significance.
The reason why shrimps turn red is because the protein is denatured under the action of heat and astaxanthin is exposed. Meat foaming can be encountered in daily stewed ribs, boiled meat, and shabu-shabu. After washing broccoli, water can pass through the gaps. The reason why the medium flows in is because the natural hydrophobic structure on the surface of broccoli is worn away. There is nothing magical about this and it does not mean how good the purifier is.
Take ultrasonic cleaning as an example. Under relatively high power, the pesticide removal rate of leaf vegetables can reach about 80 to 90%. However, it will have a certain impact on the nutritional content of vegetables, and it is impossible to achieve the so-called 100% pesticide removal effect. There is no need to buy similar products. It is better to rinse and rub fruits and vegetables under running water for 30 seconds.
Looking at the product principles, these purifiers are not reliable:
Searching with keywords on the shopping website, I found that in addition to ozone-based products (which my family bought before), now Most of them use ultrasonic purification or similar water catalyst and other purification technologies.
The principle of ozone products is well understood. It achieves sterilization and disinfection through the strong oxidation effect of ozone. However, this strong oxidant itself may irritate the human respiratory tract (it is not a big problem after cleaning). For example, if an air purifier uses an electrostatic adsorption process, it will also produce a certain amount of ozone, which is not suitable for home air purification. Only used in industrial places. Therefore, the use of ozone products is not recommended and has been basically eliminated from the market.