Jujube Juice Processing Technology

1 Raw materials Selection Choosing jujube with high maturity, purple color, tight flesh, and rich dates, remove jujube with low maturity, mildew, and infestation, and remove impurities in raw materials. 2 Wash soak in clean water and wash it repeatedly as much as possible. 3 Drain the washed jujube into a sieve with holes to control the moisture. 4 Baking Place the jujube in a baking tray and bake the baking tray in a drying room or far-infrared oven. The initial temperature of about 60 degrees, baking about 1 hour to the date issued by Jiao Xiang, jujube meat contraction, jujube skin can be slightly blew, remove and let cool. Jujube juice after baking is more intense than fresh jujube juice. 5 soaking and extracting soak Soak the jujube with fresh water. The amount of water is preferably immersed in the jujube, soaked until the jujube fleshy. Extract the soaked jujube in a pan or container and soak for 24 hours. The water temperature is 60 degrees. Stir frequently when soaking, but to avoid crushing the jujube, when the leachate solids content reaches 10%, stand the leachate and remove the supernatant. 6 Filtration Filter the supernatant of leachate with gauze to obtain a clear, transparent, bright red jujube juice. 7 Ingredients with a concentration of 75% sugar, sugar content of 13% of the weight of jujube. Add 0.1% citric acid heavy in medium jujube juice (use a small amount of water before use). The jujube juice and the sugar liquid are mixed together at a ratio of 17:3, and the citric acid solution is added, and the mixture is stirred and mixed evenly. 8 Degassing can be done with a vacuum degasser or a single effect vacuum evaporation tank. Degassing time is about 5 minutes. Note that the temperature of the jujube juice before degassing is preferably 50 degrees to 70 degrees. After degassing, jujube juice generally loses 1% to 2% of water and a small amount of volatile components. 9 Preheating The degassed jujube juice quickly warms up to 58°C. At this time, jujube essence weighing 0.01% of the juice is added. 10 Bottling, sealing, and hot-keeping Put the jujube juice in a bottle that has been sterilized and seal it immediately. 11 Sterilization Sterilize in boiling water for about 15 minutes. 12 Cooling step cooling to prevent glass bottles from breaking up.

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