Sunflower seed oil is a common vegetable oil, which is deeply loved by consumers because of its high nutritional value and fragrant taste. However, in sunflower seed oil processing plant, pre-pressing is a key step. So, why does sunflower seed oil need to be pre-pressed?

First of all, pre-pressing is an important link to improve oil yield. Sunflower seeds contain high oil content, but extracting oil directly through refining process may cause some oil to remain in raw materials, thus reducing the oil yield. Pre-pressing can extract most of the oil from sunflower seeds by mechanical pressing, which lays the foundation for the subsequent refining process. This step-by-step extraction method not only improves the oil extraction efficiency, but also reduces the waste of resources. Secondly, pre-pressing helps to protect the nutrients in raw materials. Sunflower seeds are rich in vitamin E, unsaturated fatty acids and other nutrients. If directly refined at high temperature and high pressure, these nutrients may be destroyed. By pre-pressing, the oil can be extracted at a lower temperature, so as to better retain the natural nutrients in sunflower seeds and make the final sunflower seed oil healthier.

In addition, pre-pressing can also reduce the difficulty of subsequent processing. In the process of pre-pressing, sunflower seeds are pressed to form oil cake, which has higher density and lower oil content and is convenient for subsequent solvent extraction or refining. This not only optimizes the process flow, but also saves time and energy and improves production efficiency.

To sum up, pre-pressing is an important step for sunflower processing plant to process sunflower seed oil. Sunflower seed oil needs to be pre-pressed mainly to improve oil yield, protect nutrients and optimize production technology. This process not only embodies scientific and reasonable production methods, but also ensures that consumers can enjoy high-quality sunflower seed oil. Therefore, when choosing sunflower seed oil, we may wish to pay attention to its production technology so as to better understand the product quality.