In the early years, farmers in the mountains knew that fruit vinegar was the best. Every year the leaves fall and the flowers turn yellow, and the people in the farmhouse always take out some harvested fruits such as pears, apples and hawthorn to make vinegar. The method is simple. First put it in a jar and seal it, then hide it in a cellar or barn and take it out in the middle of winter and the twelfth month. It is very popular to entertain guests and give gifts to relatives and friends, especially to coax children. A cup of fruit vinegar is cool, sweet and sour. Not to mention the greedy children, even the aunts and uncles are drooling. Before the Spring Festival, lollipops, a girl from a mountain village, set off firecrackers for boys and drank fruit vinegar for children, which was the most charming wild interest of the mountain people. In the past, there was little fruit vinegar because of insufficient food and clothing. People regard fruit vinegar as a luxury, which can only be seen in rich land. Now the well-off society is much richer. There are many kinds of juice drinks, but there are still few fruit vinegar. Fruit vinegar beverage is a fashionable health care product. Drinking fruit vinegar drinks regularly can help beauty beauty, reduce weight and promote digestion, regulate blood pressure, sterilize and resist cancer, relieve alcoholism, protect liver and soften blood vessels, which just caters to the health concept of modern people. Fruit vinegar beverage is made of natural fermented vinegar and fruit juice by modern bioengineering technology, which not only maintains the unique fruity aroma of fruit, but also has moderate acidity and more acceptable taste. It is not only a drink, but also has the effect of vinegar. Modern nutrition has proved that beverage fruit vinegar is completely different from condiment vinegar. Traditional vinegar is brewed with glutinous rice and rice as the main raw materials, which is a condiment and cannot be used as a beverage. People are familiar with old vinegar, fragrant vinegar and white vinegar, whose main functions are to regulate the digestive function of human body, stimulate appetite and promote the absorption of calcium and iron. There is also a blended vinegar, which has little nutritional value. Otherwise, fruit vinegar not only has proper sweetness and acidity, but also contains a lot of organic acids and rich vitamins necessary for human body, which vinegar does not have. After fermentation and decomposition, these components become easily absorbed by the human body, especially for the elderly and children. Chinese medicine believes that fruit vinegar is an excellent health drink to dispel dryness and heat and tonify yin deficiency. There are more than 700 records in Huangdi Neijing and Compendium of Materia Medica that vinegar can strengthen the body. Modern medicine and food experts have proved that fruit vinegar is rich in organic acids, which can soften plant fiber and promote sugar metabolism. It can dissolve bones in animal foods, promote the absorption of calcium and phosphorus, and dissolve "fatigue substances" in muscles; Vinegar can also regulate the acid-base balance in the blood and help digestion. It is also effective in improving anorexia in children. Winbond Juice is a well-known brand in Beijing. They recently produced hawthorn fruit vinegar and apple vinegar. They use modern bioengineering technology to produce a new generation of fruit vinegar beverage by blending organic fruits without pesticide and chemical fertilizer pollution with naturally fermented glutinous rice vinegar and aseptic processing. This beverage retains the advantages of traditional fruit vinegar, with clear and thorough vinegar solution, mellow smell and soft and full taste. After years of separation, fruit vinegar finally returned to the people. Modern scientific research has confirmed that fruit vinegar has the following functions of disease prevention and health preservation: 1. Fruit vinegar can relieve fatigue. Rich organic acids in vinegar can promote sugar metabolism in human body and decompose fatigue substances such as lactic acid and acetone in muscle, thus eliminating fatigue. 2. Fruit vinegar can reduce the occurrence of diseases. Vinegar is rich in amino acids, acetic acid and other nutrients, which can improve the detoxification and metabolic function of the liver. 3, fruit vinegar has anti-aging effect vinegar can be used to prepare and reduce the formation of oxides in the process of human aging. 4. Fruit vinegar has the functions of softening blood vessels, lowering blood fat and cholesterol. 5. Fruit vinegar has the function of preventing and treating obesity. Vinegar can transfer the excess fat in the human body to the body for consumption, promote the metabolism of sugar and protein, and has the innate function of losing weight. 6. Fruit vinegar has the function of beauty and skin care. With the increase of age, lipid peroxide and lipofuscin (also known as aging pigment) in human body will increase endlessly, which is an important sign of cell aging and functional decline, leading to cell function failure. When there is too much lipid peroxide and lipofuscin in the body, it will combine with substances in the body to produce toxic peroxide, which will affect various organs of the whole body. If it happens on the skin, it will reduce the metabolic capacity of the skin, and metabolic wastes (such as pigments) will accumulate on the skin surface to form senile plaques, which will also weaken the tension or elasticity of the skin, wrinkle and become slack; However, if the function of sebaceous glands and sweat glands to secrete oil decreases, the skin will lose its nourishing ingredients and become aging. Acetic acid, lactic acid, amino acid glycerol and aldehyde compounds in fruit vinegar have mild stimulation on human skin, which can dilate blood vessels, increase blood circulation and make skin radiant. 7. Fruit vinegar has strong bactericidal ability. Vinegar can kill staphylococci and Escherichia coli in the intestine and prevent dysentery. In addition, fruit vinegar can also relieve alcoholism, protect liver and prevent drunkenness, treat constipation and reduce urine sugar content. However, He, an associate professor in the College of Food Science of China Agricultural University, said that the pH value of fruit vinegar is about 3, which is strongly acidic. Long-term drinking does have a certain corrosive effect on gastric mucosa. Therefore, people with bad stomachs, especially those who already have gastric ulcers, should drink less or no fruit vinegar. People with healthy stomach and intestines should also pay attention to drinking fruit vinegar in moderation, not exceeding 200ml per day, and it is best to drink it after meals, because drinking fruit vinegar on an empty stomach has a stronger stimulating effect on gastric mucosa and is likely to cause discomfort such as stomach pain. It is also necessary to remind everyone here that although fruit vinegar can promote digestion, the sugar content of general fruit vinegar is relatively high, and the effect of slimming by it is limited. If it is not good, it will get fat because of eating a lot of sugar. If it is used for other health care purposes, it can be diluted with water at the ratio of 1: 1 before drinking, or eat some soda biscuits when drinking fruit vinegar, which can reduce the irritation to the stomach.