Many people buy prawns and freeze them directly in the refrigerator. Although they can be kept for several months, they taste a little worse. Tianjin Professional Chef Chen Tao teaches you two tips for preserving prawns. Even if they are frozen for a long time, the prawns are still fresh. The first method is to add sugar and freeze. Rinse the fresh prawns with clean water and drain the water. Prepare some sealed fresh-keeping boxes and put the drained prawns into the fresh-keeping box. Sprinkle a layer of sugar with prawns. Don't use too much sugar, just sprinkle it evenly. White sugar can lock the water of prawns, keep them fresh and fresh. Seal it and put it in the freezer of the refrigerator. The second method is mineral water bottle cryopreservation. Prepare some 500ml mineral water bottles, just enough for a meal. If the bottle is too large, it will affect the quality of prawns after thawing. Put the fresh prawns into the mineral water bottle one by one. Don't fill it too full, because the water will expand when it freezes. Then fill the mineral water bottle with water, add an appropriate amount of salt, cover it tightly and put it into the freezer layer of the refrigerator. It is very fresh for half a year. The sealed mineral water bottle can prevent water loss and isolate odor and bacteria. It is very convenient for prawns to eat and take at any time. (outlook new era)