Jujube and black jujube are the dried products of fresh jujube, which are rich in nutrition and contain protein, fat, sugar and vitamins. Vitamin C, calcium and iron are the most abundant. It has high medicinal value. It is mostly used for enriching blood and as a conditioning drug, and has certain curative effects on anemia, thrombocytopenia, hepatitis, fatigue and insomnia. Jujube and black jujube have similar effects, but black jujube has the function of strengthening blood supply. Black dates are rich in vitamins, which have a strong effect on enhancing immunity in vivo, and have obvious curative effects on cardiac cancer, lung cancer and hematemesis. Black dates can prevent the occurrence of malignant tumors, and a reasonable diet plays a key role. In the new concept of diet and health, vegetables, fruits and protein play a more important role. Therefore, while ensuring adequate nutrition, we should eat more fruits and vegetables, drink more water, and eat less fried, spicy and other foods, some of which have anti-cancer effects. For example, vegetables such as onions, potatoes, tomatoes, garlic, radishes and asparagus, fruits such as kiwi fruit, sea buckthorn, persimmon and black dates, and seaweed foods such as kelp and Sargassum have anti-cancer effects. The fucoidan in kelp has anti-cancer effect. At the same time, kelp, as a nutritious food, can be properly eaten by normal people and patients. Followed by quitting smoking and staying away from ionizing radiation. = = = Scientific name of black jujube: persimmon tree lotus. English name: Dateplum persimmon family name: Ebenaceae arbor, 5- 10 meters high; The bark is dark brown and deeply split into square blocks; Young branches are gray pilose. The leaves are oval to oblong, 6-12cm long and 3-6cm wide. The surface is densely pilose and falls off, the back is gray or pale, and the veins are pilose. Flowers pale yellow or reddish, solitary or clustered leaf axils; Calyx densely pilose, 4-parted, lobes ovate. The fruit is nearly spherical with a diameter of 1- 1.5 cm. When mature, it is blue-black, with gray layer and nearly sessile. The flowering period is May, and the fruit maturity is10-11. Wild or cultivated in mountainous areas, hillsides and valleys; Distributed in Liaoning, Hebei, Shandong, Shaanxi, Central South and Southwest China. Excellent material, which can be used as general material; Fruit contains vitamin C, which can be extracted for medicine. Seeds used as medicine can quench thirst and remove heat; Junqianzi tree can be used as sweet rootstock of persimmon. Black jujube dried fruit: good skin color should be black and bright, with red in black; Black skin is the second; Black belt wilting is even worse; If the whole leather surface is reddish brown, it is defective. Ok, the black dates are big and even. Short, firm and round, round at the top, square at the pedicle, thin and shallow skin wrinkles. When selecting black dates, we should also pay attention to insects, broken heads, rotten dates and so on. When cooking black dates, if a small amount of rushes is added, the jujube peel will automatically fall off. As long as you rub it with your fingers, the jujube peel will fall off. Hebei is connected with black dates and produced in Xingtang, Hebei. According to different scions, it can be divided into: milk black jujube, big goat milk black jujube, old crow mouth and honey black jujube. Milk ink jujube, also known as seedless black jujube and jujube, is oval in shape, medium in size, thick and sweet, with few seeds. When it matures, it turns from yellow to blue-black, and there is white powder outside, which is of high quality. Less fruit juice, suitable for raw food, can also be processed into jujube noodles, black jujube wine, black jujube vinegar and so on. When the fruit is used as medicine, it has the effect of quenching thirst and removing heat, and the seed kernel can extract oil to make soap. Black jujube vinegar material: black jujube 1000g, aged vinegar 2000CC Practice: A, black jujube does not need to be cleaned, just pick out impurities. B, putting the black dates and the aged vinegar into a glass jar and sealing. C, it can be drunk after being stored for 4 months. Edible: Black date vinegar can also be mixed with fresh grape juice and diluted with appropriate amount of boiling water. Efficacy: This drink is sweet and delicious, nourishing the heart and lungs, promoting fluid production to quench thirst, resisting aging, promoting blood circulation and reducing cardiovascular congestion. It is recommended to drink before going to bed, enrich blood and lose weight, and also inhibit the lateral growth of the body. = = Selection of raw materials → Grading → Boiling → Smoke pit → Smoking → Softening → Grading → Packaging method 1. Selection of raw materials: choose fresh and ripe fruits with large fruit shape, small stone, loose meat and little juice as raw materials, and remove broken dates and rotten dates. 2. Grading: Select the dead branches, mud blocks, stones and other sundries in jujube and treat them according to their size, maturity and variety. 3. Boiling: Boil the water, pour in fresh dates and heat for 5 ~ 10 minutes. Boil until the pulp is slightly soft, take it out to dry and prepare for smoking. 4. Preparation of fumigation pit: dig a pit with a depth of 180cm, a width of 160 ~ 200cm and a suitable length underground, and build a shed with bamboo chips and sorghum stalks about 50cm away from the pit, and jujube fruits can be stacked on the shed surface. 5. Fumigation: Generally, jujube fruits should be spread on the shed surface with a thickness of13 ~160m. If it's too thick, it won't dry. If it is too thin, cover the jujube fruit with a reed mat and burn firewood at the bottom of the pit. The humidity of jujube layer is about 60 ~ 70℃. Pay attention to adjust the firepower. After smoking for about 12 hour, turn the jujube up and down once, continue smoking for 12 hour, complete the smoking stage, and prepare to go out of the pit. The yield of jujube is 30 ~ 33% of that of fresh jujube. 6. Softening: In order to make the moisture inside and outside the jujube tend to be uniform, smoked jujube should be stacked in a relatively dry and ventilated warehouse, and its height should generally not exceed 1 m. After 7 ~ 10 days, you can pack and leave the warehouse. 7. Grading: The same variety is graded according to its head size and black jujube color. 8. Packaging: Most of them are packed in gunny bags: it is best to use monofilament linen oblique-mouth big bags, lined with catties and tied with cross ropes. This kind of packaging is not only tightly ventilated, but also can prevent the jujube peel from being worn. It can also be packed in ordinary gunny bags. The quality standard is 1. It requires drying, jujube meat is firm, and it will not be deformed and peeled when pinched. 2. The black jujube skin is bright and shiny, and the black inside is red. 3. The particles are large and uniform, short and round, with round top and square pedicle, and the skin wrinkles are thin and shallow, clear and non-sticky. 4. It is best that the meat is light yellow, the meat is solid and meticulous, the core is small and the taste is sweet.