About 30% to 40%. According to the query agriculture planting network, the traditional vertical oil top oil press has a relatively low oil yield of about 30%; with the oil press, 100 pounds of peanut rice can be extracted 40 pounds of peanut oil, the oil yield is about 40%; with the press, 100 pounds of peanut rice can be extracted 43 pounds, 3 pounds of which is the stranded peanut kernel, after 2-3 weeks of sedimentation After 2-3 weeks of sedimentation, the peanut kernels are removed, and the peanut oil yield is 40%.