Put the grapes in the pot one by one, don't leave any completely; . Adding water that can cover the height of grapes; Sprinkle some flour into the water (any kind of flour is the easiest to buy in convenience stores); Stir a few times in the water with your palm; Pour out the turbid flour and dirty water, and rinse with clear water several times until the water is clear. You can hear that flour is a good natural adsorbent, which can adsorb dirt and grease on the surface of fruits and vegetables. Flour water can wash dishes and is really good to use.

Put the grapes in a towel and sieve them in water, and the frost on the grapes will soon disappear.

Gently knead with salt, so that all grape skins are stained with salt, then soak for 20 minutes, pour off the water, add clean water, and finally rinse with cold boiled water. The third method is more convenient.

Grapes are neither hot nor cold, they are flat fruits. Traditional Chinese medicine believes that grapes are flat and sweet, enter the lung, spleen and kidney meridians, and have the effects of nourishing qi and blood, benefiting liver and kidney, promoting fluid production to quench thirst, strengthening bones and muscles, relieving cough and vexation, nourishing blood and diuresis. The sugar content of grapes in mature berries is as high as 10 ~ 30%, mainly glucose. A variety of fruit acids in grapes help digestion, and eating more grapes can strengthen the stomach. Grape contains minerals such as calcium, potassium, phosphorus and iron, and vitamins B 1, B2, B6, C and P, etc. They also contain a variety of amino acids needed by the human body. Eating grapes regularly is of great benefit to neurasthenia and fatigue.