750g of ebony, 250g of hawthorn, 3000g of white sugar, 50g of citric acid and 5 5- 10/0ml of cold boiled water, and the production method is 80l.

1. Wash a certain amount of ebony and hawthorn with water, pour into a special cooking container, add 30 liters of water, boil for about 1 hour, then filter with cloth, usually with four layers of gauze, to remove residues. Don't dump the residue easily, you can steam it for a second time. 2. Add the filtered clear liquid into the sugar boiling pot, then add a certain amount of white sugar, slowly heat and melt it, then filter it with gauze and pour it into the enamel pot. 3. Add water to the storage tank to a constant volume of100L, then add an appropriate amount of citric acid to adjust the acidity, and then mix it according to everyone's different tastes until the sweetness and acidity are appropriate. 4. Finally, choosing the right amount of fruity essence and blending the fragrance can improve the flavor and increase appetite, but we must pay attention to controlling the dosage when using it. 5. Seal the jar and put it in the refrigerator; You can drink it anytime. quality standard

1. Aroma: Aroma of original fruit. 2. nutrients: rich in vitamins, especially vitamin C. Flavor: the proportion of sugar and acid is appropriate, sweet and sour, and no peculiar smell. 4. Color of the juice: clarify that the juice is bright, bright and transparent. Sour plum soup is a traditional refreshing drink in China with a long history. In hot summer, drinking a cup of iced sour plum soup can really relieve a lot of summer heat, but many people only know that it can relieve summer heat, but they don't understand that the benefits of sour plum soup go far beyond this.

Ye Song, chief physician of the Department of Gastroenterology, Hubei Provincial Hospital of Traditional Chinese Medicine, said that sour plums are warm and sour, and contain very rich organic acids, such as malic acid and citric acid. Among them, there is also a citric acid, which can effectively inhibit the production of lactic acid. High lactic acid content in the body is an important cause of fatigue. Drinking sour plum soup can quickly eliminate fatigue and restore physical strength. In addition, sour plum has strong antibacterial ability, which can not only help digestion and stimulate appetite, but also clear stomach, repel insects and prevent diarrhea.

Special attention should be paid to the cleanliness of diet in summer. In summer, people's gastrointestinal sterilization ability is relatively weakened. In addition, people generally like to eat cold food in summer, and a little carelessness can easily lead to digestive tract diseases such as diarrhea. Therefore, at this time, you can drink a little sour plum soup in moderation to help with gastrointestinal examination. Sour plum soup contains more acidic substances, which can also promote the secretion of saliva and gastric juice and protect the stomach.

Director Ye said that drinking sour plum soup in hot summer is not only sweet and sour, but also appetizing and hydrating, which is much better than those carbonated drinks. Although sour plum soup tastes sour, it belongs to alkaline food. Eating too much acidic food such as meat and drinking sour plum soup is more conducive to the balance of blood pH in the body. In addition, sour plum soup can calm the liver fire and help digestion. Those with strong liver fire should eat more sour plum soup.

It is worth noting that at room temperature, sour plum soup is easy to deteriorate. If you see thin bubbles floating on the surface, it means that it has deteriorated and you can't drink it. If you can't finish the sour plum soup at once, you'd better store it in the refrigerator.