From a nutritional point of view, rice water with white vinegar is just an ordinary mixture with no special use. Rice water is the water left over from washing rice, which contains a small amount of starch as well as some minerals, vitamins and other ingredients. It looks white because of the starch in it. The first rice water contains more impurity dust and may also have pesticide residue. The main role of white vinegar is flavoring, in which the main component is water, and the main flavor-presenting component is acetic acid, while containing some fruit acids, free amino acids, vitamins and other aromatic substances. Every 100 grams of white vinegar contains 0.1 grams of protein, 0.6 grams of fat, 22 milligrams of calcium, 1 milligram of iron, and can provide 6 kilocalories. Rice water with white vinegar is just an ordinary mixture that does not produce a marvelous chemical reaction or generate other chemicals, and cannot be used for the treatment and prevention of diseases, nor does it have any special use.