The difference between soft ice cream and hard ice cream: 1. Different raw materials: soft ice cream is made of soft ice cream powder or ice cream slurry; hard ice cream is made of hard ice cream powder. Due to different ingredients, the two cannot be mixed. 2. The expansion rate is different: the soft ice cream has no hardening process in the production process, and the expansion rate is 30%-60%. Generally, the ice cream machine can be made and sold. The expansion rate of hard ice cream is 80%-100%, and the hardening molding is to facilitate packaging and transportation. 3. Different nutritional components: Generally, soft ice cream contains more (about 1.6 times) nutrition than a hard ice cream of the same volume; soft ice cream that has not been hardened will taste more smooth and mellow. 4. The freezing temperature is different: the core temperature of soft ice cream is -5°C, and the core temperature of hard ice cream is -15°C. Commercial soft ice cream machines and hard ice cream machines are professional ice cream machines. They are fast in production, large in output, and fast in refrigeration, so they are the best machines for making ice cream commercially.