Shrimp slices, also known as jade slices, are traditionally made of shrimp juice and starch. If the shrimp slices are made of potatoes, the products are unique and popular with people. There are two ways to make shrimp slices with potatoes. One method is to use potato powder instead of 10-20% starch. The manufacturing process is the same as the traditional method. After adding whole powder to shrimp slices, the nutritional value and swelling degree of shrimp slices are improved. Another method is to use fresh potatoes to make products similar to shrimp slices through a series of processing processes, which are called potato chips and shrimp slices.

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2 Processing process

The processing flow of potato chips and shrimp slices is: selecting materials → cleaning → peeling → slicing → cleaning (color protection) → cooking → drying → setting → finished products.

Three key points of operation

Selecting, cleaning, peeling and making potato chips and shrimps should be free from pests and diseases, mildew, germination and dehydration. After selecting the raw materials, wash them with water and remove the skins of the washed potatoes. The stripping method can be manual stripping, alkali soaking stripping or chemical stripping agent stripping. Immediately put the peeled potato pieces into clean water to clean the residual lye or chemical stripping agent, and prevent them from browning when exposed to air.

Slicing is to cut peeled and washed potato pieces into small pieces with a thickness of 0.2 cm. Slicing can be done by slicer or by hand. Cut small potato chips should be immediately put into clear water or color protection solution, and stirred up and down to wash off the free starch and solanine stuck on the small potato chips.

Cooking is to pour the soaked potato chips into a boiling water pot (using stainless steel pot to ensure the color of potato chips) and cook for 3-4 minutes. When the potato chips are ripe but not rotten, take them out quickly and put them in cold water, stir them gently, so that the potato chips can be completely cooled as soon as possible, and the starch paste, sticky foam and other substances on the potato chips can be removed, so that they can be separated without sticking.

Sun drying, taking out the cooled potato chips, draining water and air drying. The easiest way to dry the potato chips is to turn them upside down, put them on the mat in a single layer and wrap them in plastic when they are half dry. It was dried for many times, and then it became potato chips and shrimp chips. In order to store potato chips and shrimp chips for a long time, during the drying process, some mildewproof and antiseptic sorbic acid or benzoin benzoic acid solution was mixed, soaked in the sun, and then dried in the shade. According to the size of potato chips, they are packaged and stored in a ventilated and dry place, and then they can be sold in the market.

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