The three types of nutritional value are: cooking machine > juice machine > juicer. The juice extractor and the juice machine are all separated from fruit juice and fruit juice, and all the squeezed juice is pure juice. In fact, a high sugar content and two discarded fruit pomace contains a lot of dietary fiber and other nutrients. The food machine is the fruit are broken, cooking machine can easily complete food including skin, seeds, core, stirring into a dense taste of delicacy, solution is not easy to chew and digest part is rich in nutrition is the problem of waste, thus obtaining food nutrition. A lot of fruit nutrients exist in skin and seeds, for example, grape fruit polyphenols with strong antioxidant function, which can retard aging, mainly exist in grape skins and seeds.