How to extract walnut oil

Walnut oil is a vegetable oil made from walnut kernel by pressing, which belongs to edible oil, also known as Nuwa walnut oil. The oil content of walnut is as high as 65% ~ 70%, ranking first among all woody oils, and it has the reputation of "oil depot on the tree".

The preparation proces of walnut oil comprises that follow steps:

1, selecting materials, carefully selecting pecans, and manually crushing kernels;

2. Stir-frying: put the walnut kernel into a wok and stir-fry at the temperature of 120- 140℃ for 10-20 minutes to obtain steamed products;

3. Put the steamed and fried materials into a pulverizer for pulverization;

4. Heat the oil press for 25-35 minutes, control the temperature at 150- 180℃, and then put the crushed walnut kernel into the oil press to extract oil to prepare crude oil;

5, filtering: putting the crude oil into a vacuum cylinder, and filtering off impurities to obtain refined oil;

6. Keep the refined oil warm and naturally precipitate for 20-30 hours, and then add the refined oil.