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Lotus root frozen frozen
First, raw material selection and pretreatment Raw materials should be selected from white lotus root, fresh lotus root, whole body without rust, no redness, purple, no pests and diseases. 2. Raw material pre-treatment (1) Raw material cleaning? Immerse the selected raw material into a clean water tank and wash the body surface one by one with a soft brush or a soft cloth. (2) Cut off the knots, peel the cleaned lotus roots, cut the knots into sections with a stainless steel knife and cut the knots section by section. Then use a sharp small planer to plan the outer thin skin. (3) Color protection: The peeled pods should be immersed in 1.0% refined salt solution or 1.5% citric acid solution in time to prevent exposure of the liquid surface and soak for 15 minutes to prevent discoloration. (4) Slices: Using a sharp stainless steel blade, cut the sacral section into a circular thin septum 8 mm to 10 mm thick. The thickness should be uniform and the sheet shape should be intact. Cut scallops should be hot-skinned as soon as possible. If they cannot be simmered at a time, they should be soaked in 1.5% saline solution for temporary color retention. (5) Blanching? The main equipment is a sandwich pan or spiral continuous blanching machine. In blanching water, 0.1% citric acid must be added to adjust the pH of the water to protect the color. The blanching temperature is controlled at 98 to 100°C and boiled for about 2 minutes. (6) Cooling: Immediately put the burned bracts into the flowing cold water pool and repeatedly cool them until they have passed through the heart or cooled by the cold water spray, then immerse them in a cooling pool below 5°C to cool them. The temperature of the cymbal center is reduced to below 10°C at the fastest speed. 2. Drainage and selection After cooling, the bracts shall be drained, and the discolored and severely damaged bracts shall be removed while draining. Third, the quick-frozen and quick-frozen before the various parts of the tablet first with a high-pressure water gun rinse disinfection, and then placed in -30 ~ 35 °C temperature freezing, the freezing time of 10 to 12 minutes. The temperature of the center of the sepals is below -18°C. Fourth, hanging ice clothes?? Hanging ice clothes is to cover the surface of a slice of transparent thin ice. The specific approach is: put the frozen sepals, take 2 to 3 kilograms each time in a perforated plastic basket, together with the container immersed in a cold drinking water at about 2 °C for a while (about 2 to 3 seconds) quickly The basket is shaken, then lifted and drained. At this time, the surface of the sequins will soon be covered with a thin layer of transparent ice. The cymbals after hanging ice should be immediately bagged, sealed, packed and stored in storage.