1. The longer it takes, the cleaner it will be?

"soaking" is the most common way to clean fruits and vegetables, but many people have the wrong understanding that the longer the fruits and vegetables are soaked, the cleaner the dishes will be.

However, scientific experiments have proved that if fruits and vegetables are soaked in water for more than 31 minutes, the water-soluble cellulose in vegetables will be lost

Because there are limited pesticides that can be dissolved in water, the longer the soaking time is, the fruits and vegetables will be polluted again after being soaked, which is equivalent to giving up all previous efforts and possibly producing nitrite, which is also harmful to health

Therefore, it is generally believed that the scientific soaking time of fruits and vegetables should be 11~15 minutes.

2. Is it convenient to cut the picture before developing it?

Many people like to cut vegetables before washing them for convenience. For example, when washing potatoes, sweet potatoes, eggplant and other fruits and vegetables, cut them first and then soak them in water directly, which is convenient and can prevent the ingredients from changing color.

but I don't know, this practice will make the nutrients in food, such as B vitamins, vitamin C and some minerals, dissolve in the water, so that the nutrients will be lost with the vegetable washing water; Moreover, the direct contact area between chopped vegetables and water increases, and the chance of being polluted increases, so it should be washed first and then cut.

3. Wash it more cleanly with vegetable and fruit cleaner?

The cleaning agent for fruits and vegetables contains some solvents, which can dissolve water-insoluble pesticides in water and then wash them away with the water. However, fruit and vegetable cleaners contain surfactants, which are complex in composition and easy to attach to the wax layer on the surface of fruits and vegetables, and are not easy to remove. If it is not cleaned, it will cause secondary pollution.

4. Wash the salt water more cleanly?

Salt water does help to remove pests in fruits and vegetables. For example, salt water can soak out some bugs in fruits and vegetables such as cherries and cauliflower. However, if a handful of salt is added during soaking, if the concentration is too high, the cell membrane of vegetable leaves will be damaged, which will not only lose nutrition, but also allow pesticide residues to enter the vegetable.