How to make sunflower oil from sunflower seeds? There are three methods: cold pressed method, warm pressed method and solvent extraction method.
1. Use cold pressed sunflower oil making machine
Cold pressed single scew sunflower oil making machine
Before using cold pressed sunflower oil making machine, the hulls of sunflower seeds should be removed; The seeds are broken into smaller pieces and run through steel rollers or a piston-like cylinder of sunflower oil making machine to squeeze out the oil. The resulting oil is usually labeled as "extra-virgin" sunflower oil, but the process leaves much of the oil behind in the sunflower seed cakes.
Another cold pressed sunflower oil making machine is automatic sunflower oil making machine with vacuum filters. As the follwing picture shows.
Automatic sunflower oil making machine with vacuum filter
Both machines are pretty good in making sunflower oil. The screw sunflower oil making machine is much cheaper than the automatic one, mainly because it do not have vacumm filters. But if you want to get pure oil at one time, you should choose the automatic sunflower oil pressing machine, or you can even buy a mini sunflower oil refining machine to get refined sunflower oil.
2. Use roastor to cook sunflower seeds before pressing
Sunflower oil making machine with roaster
This way is called warm pressed method. Its work is much the same as cold pressed sunflower oil making machine, but the sunflower seeds are heated slightly before pressing. The heat lowers the viscosity of the sunflower oil, so it flows more easily from the sunflower seeds when pressed; Warm pressed method extract more sunflower oil from sunflower seeds, but the flavor differs slightly, similar to the difference between roasted or unroasted nuts.
3. Use solvent to extract sunflower oil from sunflower seeds
Sunflower oil solvent extraction plant
After pressing sunflower seeds through the cold or warm pressed sunflower oil making machine, hexane might be applied to help extract any remaining oil from the sunflower seeds. "Hexane" is a chemical which is applied to the seeds to increase the amount of oil that can be extracted. Then extracted oil is boiled so the hexane evaporates.
Sunflower oil is light in taste and appearance and supplies more Vitamin E than any other vegetable oil. It is healthy, natural oil. If you want to make sunflower oil from sunflower seeds, welcome to write down your request. Our sales will contact you to talk the detailed information about sunflower oil making machine.