Frozen Sweet Potato Chunks

Basic material option: Thoroughly select pleasant potatoes with moderate maturation, no pests, no rot and normal form. Carry out initial testing to eliminate people with apparent surface area flaws. Washing and peeling: Place the sweet potatoes under running water to totally clean and get rid of contaminations such as mud and sand, after that utilize mechanical or chemical peeling off to eliminate the pleasant potato skin to make certain that the skin is thoroughly peeled off and the wonderful potato flesh is not damaged. Cutting: Cut the peeled wonderful potatoes into equally sized blocks. The size of the blocks relies on the product requirements, usually 2-5 centimeters square, to guarantee uniform heating and cold in subsequent handling. Blanching: Put the wonderful potato obstructs in hot water for paling, the temperature level is controlled at 90-100 ℃, and the time is about 2-5 minutes. The objective is to passivate the enzymes in the wonderful potatoes to prevent them from transforming color and degrading during storage, and it can likewise disinfect to a specific degree. Cooling down step: After paling, promptly cool down the pleasant potato blocks with cold water or cool air to rapidly reduce the temperature and quit the influence of heat on the high quality. Quick freezing procedure: The cooled wonderful potato blocks are sent to the quick cold passage or fast cold warehouse, and swiftly frozen in a reduced temperature environment listed below -30 ℃, so that the wetness inside the wonderful potato promptly forms fine ice crystals, reducing damages to cell tissues and preserving preference and nourishment. Packaging and storage: The quick-frozen wonderful potato blocks are packaged with secured and moisture-proof product packaging materials and saved in a freezer below -18 ℃ to guarantee product high quality and expand service life.