Choose fresh raw materials, with proper color and intact skin with no decay. Cleaning and blanching raw materials in clear hot water. Soaking the cool down raw materials in maltose solution with certain percentage proportion. Take out the sugar-soaked raw materials, fully drain them, and quickly freeze at -18℃. Evenly pack the quick-frozen ingredients into material cages, with 120kg in each pot. The oil temperature of Lentinus edodes is 85~90℃ and the vacuum degree is below -0.095MPa. When frying, observe from the observation hole and de-oiled inside. The product is winnowed by a winnowing machine Pack 1500g of products into aluminum foil boxes. Put a bag of deoxidizer, and seal. Expiry date is according to the contract requirements. The finished products shall be stored in the warehouse, and the distance between the walls shall be more than 20cm. The relative humidity in the warehouse shall not exceed 50%.