To sum up, it is fire frying, stone grinding, fire steaming, cake wrapping, squeezing and hammering.

In ancient times, the traditional oil extraction needed to dry the harvested flax seeds, yellow mustard rapeseed and other oil crops, then pour them into an inclined pot on the earthen stove to stir fry until they were dark brown, take them out, spread them in a clean place and grind them into powder. Steaming in a pot, steaming to a certain temperature, and then packaging, and packaging the steamed oilseed powder in an iron ring while it is hot to make cakes.

Put the oilseed cake neatly in the main oil ditch, squeeze it tightly with a wooden wedge, and then crush it to squeeze the oil. The squeezed oil will flow into the oil drum along the groove.

The ancient traditional oil production rules, although the output is small, but the quality of oil is good. The extracted oil has high purity and strong fragrance, and can be preserved for a long time without deterioration. But this method is complicated, time-consuming and laborious.

Compared with oil extraction, the amount of oil extracted in one day can be equal to my continuous 1 month. Now it takes two days to complete the whole oil extraction process. You can squeeze 500 Jin of oilseeds in two days and produce butter 130- 140 Jin.

Extended data:

In ancient times, oil extraction paid attention to technology and technology paid attention to the accumulation of experience. Every process of traditional ancient wood pressing is very exquisite, and it has its key points, such as temperature, intensity and time. The ancient complex oil pressing technology has not faded gradually with the passage of time, but has been continuously improved and refined, condensing the wisdom crystallization and innovation of generations of folk craftsmen.

In ancient times, oil extraction paid attention to technology and technology paid attention to the accumulation of experience. Every process of traditional ancient wood pressing is very exquisite, and it has its key points, such as temperature, intensity and time.

Peanuts are made of high quality peanuts, with rich aroma and full particles. When purchasing, they must undergo strict sampling and inspection to ensure the high quality of peanut raw materials and the natural fragrance from raw materials. And the unique sealing technology is adopted to push the authentic secret frying technology to the peak, fully retaining the original flavor of peanuts.

The low-temperature precipitation filtration control method keeps the nutrition and fragrance of peanut oil to the maximum extent, and filters the original fragrance without adding it. In the production process of filtration, low-temperature crystal growth is adopted, and low-temperature filtration is carried out with filter paper and filter cloth to remove easily precipitated phospholipids, phosphorus-free gum, high-melting saturated fat and other components in peanut oil, so as to ensure the purity of peanut oil and raise the fragrance to a new level.

Strictly control the storage temperature of peanut oil, avoid direct sunlight, reduce contact with air, adopt nitrogen storage mode, keep the fragrance in peanut oil as much as possible, slow down the change of quality index, ensure the natural quality of oil products, and store authentic peanut fragrance.

People's Daily Online-Insider Continues the Traditional Oil-pressing Technology of Oil-fragrant Shenmu

Baidu encyclopedia-oil pressing