Flaxseed, also known as sesame seed, is small, flat and oval, with a smooth and shiny surface. As one of the commonly used oil crops, flaxseed not only contains 30%-45% oil, but also has unsaturated fatty acid and α-linolenic acid contents far exceeding other edible oil raw materials. In addition, flaxseed also contains active ingredients such as lignans and vitamin E, and is a natural treasure trove of nutrition. For this reason, the flaxseed oil extraction industry has broad prospects.
There are two main methods for pressing linseed oil: hot pressing and cold pressing. Hot pressing is to first fry the linseed raw materials to about 120℃, and then put them into the oil press to squeeze out the oil. The process flow is: wash the fresh linseed, steam and fry, hot press, filter, and get hot pressed crude oil. Cold pressing is to directly squeeze out the oil without any heating treatment of the linseed raw materials. The process flow is: wash the linseed, cold press, filter, and get cold pressed crude oil.
Hot pressing has a high oil yield and the oil has a toasted aroma, but unsaturated fatty acids such as α-linolenic acid will be partially oxidized and lost due to high temperature. Cold pressing has a lower oil yield, but it can prevent the oxidation and deterioration of unsaturated fatty acids. From the perspective of nutritional ingredients, cold-pressed flaxseed oil has a higher vitamin E content, while hot-pressed oil has higher sterol and phospholipid contents than cold-pressed oil.
1. Low temperature cold pressing technology to retain natural nutrients
2. High oil yield and low residual oil design
3. Multifunctional adaptability, one machine for multiple uses
We recommend cost-effective linseed oil extraction methods and linseed oil processing equipment to customers based on factors such as raw material quality, finished oil requirements, and investment costs. If you are interested in purchasing linseed oil processing equipment or have questions about the processing technology, please contact us and we will arrange for professionals to explain it to you.
Whether you are a novice in the oil pressing industry or a mature enterprise seeking to upgrade equipment, QIE Machinery is your trustworthy choice. We look forward to working with you to jointly tap the unlimited potential of the oil pressing industry!