Sweet potato food processing technology (b) sweet potato fruit

The characteristics of sweet potato preserved fruit products are that sweet potato quail contains many kinds of vitamins and invert sugar, has good taste, fresh potato flavor and moderate toughness. The raw material formula is 50 kilograms of sweet potato, 15-20 kilograms of white sugar, 1-1.5 kilograms of honey, 100 grams of citric acid, and 75 kilograms of water. The main points of production are as follows:
1. Wash potatoes: Select fresh potatoes with a diameter of 5 cm or more and wash the soil for use.
2. Peel and cut into pieces: Remove the skin with a peeler or hand and cut into rectangles or other shapes. The length should not exceed 5 cm. Do not cut into thin strips to prevent boiled. After cutting, remove the chips and starch from the tuber with water.
3. Hardening: Soak the cut sweet potato in lime water until the surface has a certain hardness, remove and rinse.
4, candied: the hardened potato block into the stainless steel pot, add water, sugar, honey, citric acid, boil as soon as possible, boiled for about 30 minutes, with potato chips cooked rather than rotten better.
5. Impregnation: Soak the tuber and sugar liquid together in a large cylinder and soak it for 24 hours so that the tuber can further feed sugar.
6, sugar control: the impregnated potato pieces removed, the single-layer flat on the bamboo tray, potato chips do not stack pressure, control of sugar.
7. Baking: Put the bamboo steamer in the baking room and control the temperature between 60-70°C. When baking, turn and continue to bake for 12 hours. The water content of the potato pieces was reduced to 16% - 18% at room temperature.
8. Integral packing: Cool the potato block from the house, remove debris and unformed pieces, and seal them with bags.

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