Fruit natural drying method
Natural drying is the use of solar radiant heat, hot air, etc. to make fruit dry, also known as natural drying. The natural drying equipment is simple, the method is simple, the use of a wide range, a large amount of processing, low production costs, no special management techniques, but subject to climate and regional constraints, in the dry season in case of rain, especially rainy weather, dry The process is prolonged and the quality of dried products is reduced. Even a long period of rainy weather causes decay, causing great losses.
The folk fruit dried method in our country is generally chosen to be open and ventilated, where the ground is flat and dry, and the fruit is directly laid on the ground or directly exposed on the mat, bamboo foil, and drying tray. During the night or when it rains, stack piles and cover rain-proof equipment. The next day and then dry until dried. This method is used to dry jujube and dried persimmons in most parts of China, such as North China, Northwest China and Shandong Province.
During the natural drying process, care should be taken to prevent rain and damage to beasts and to pay attention to hygiene. During the drying process, the raw materials are often turned to accelerate the drying process. When the moisture in the raw materials is mostly evaporated, it should be used for a short period of time. Stacking softens the material, allowing the internal moisture to shift outwards, and then drying, so that the product is relatively dry. If you smoked sulfur and blanched before drying, you can shorten the drying time and improve product quality. The dried product is packaged and stored in a dry place.
Although natural drying has many advantages, it is often limited by weather conditions. When jujube and persimmon are ripe and dry, it is the autumn season, often due to continuous rain and rain, causing a lot of losses, and it cannot produce bumper crops. In recent years, some key dry fruit producing areas have used artificial drying methods, which have reduced losses and improved the quality of dry products.
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