The main factors affecting peanut oil press oil press to take effect squeezing the oil effect the decision taken on many factors , including the condition of virgin material structure and squeezing two aspects . Additionally , oil equipment structure and to some extent also the selection pellet plant of the oil effect . affect the structure of virgin material structure virgin material refers to the mechanical structure of both internal and external structure virgin material . structural properties of virgin material depends mainly on the pretreatment ( mainly steamed fried ) the quality of the ingredients and the potato peeling machine. general requirements for virgin material structure. requires virgin material particle size should be appropriate and consistent with the structure of the internal and external consistency of virgin material is good, the number of intact cells virgin compound the less the better , virgin material density without compromising the internal and external structure the bigger the better . requires virgin compound viscosity and surface tension of the oil as possible to lower virgin material particles have sufficient plasticity.