Potato ice cream is a new method of producing ice cream with potatoes invented by Hankyu Domestic Air Transport Co., Ltd. in Japan. In the past, the raw materials used in general ice cream were often milk, sugar, emulsifier, egg yolk and so on. Due to the continuous expansion of potato raw materials, in order to solve the problem of its utilization, Salem mashed potatoes were used to produce ice cream. This new product is very different from the previous products in flavor, because it uses potato raw materials, so it has potato fragrance.