The manufacturing steps are as follows:
1. Choose grapes. Seedless white grapes are mostly used for air-drying, while grapes with full flesh, beautiful appearance and high sugar content should be selected as far as possible, and the fruits must be fully ripe, otherwise the raisin granules produced by air-drying will not be full enough.
2, cutting strings, grapes that meet the standard of making raisins need to be cut off, and in the process of cutting strings, too small and injured rotten fruit particles need to be removed. Then directly spread it on a drying plate and expose it to the hot sun for a day to dry it.
3, dry, here take Xinjiang's green seedless raisins as an example. First, the dried grapes are hung in the drying room in a string, and kept ventilated and dry in the shade.
4, the raisins are softened, the raisins are knocked down from the drying room, stacked for 2-3 weeks, dried evenly, and finally the fruit stalks are removed.
5. Packaging: Generally, raisins are packaged in plastic food packaging bags, and at the same time, they should have moisture-proof and sealing functions, which is convenient for transportation and sales and will not cause moisture regain.
The above is the home processing process of natural ancient drying method. Of course, some people will dry raisins manually in pursuit of benefits, but the nutritional value will be seriously lost, so it is not recommended to buy them.