How to Squeeze More Profit From Soybeans 21st Century Press Technology Grow your oil extraction profits with the high-volume, high-quality, high-tech Dupps Soybean Press. This USA-made press is ideal for Identity Preserved crop products.Higher Production Old expeller-type technology often tops out at 1,000-1,500 pounds per hour: about 18 tons per day at best. The Dupps Soybean Press comes in 50 and even 100 ton-per-day models.Lower Residuals Ordinary mechanical extraction wastes profit by leaving up to 8% residual oil. The Dupps press can produce as low as 5% residuals, increasing your profit on every bean you squeeze.