Linseed Oil Extraction Line

Linseed oil contains an appropriate amount of linolenic acid, and the ratio of linolenic acid and linoleic acid in linseed oil is 1:4 which is beneficial to the human body, however, linolenic acid is highly heat sensitive and is easily oxidized. When the critical temperature is exceeded, the activity of linolenic acid begins to be destroyed. Therefore, when making linseed oil, it is necessary to choose a low-temperature physical pressing method without any heating treatment. Low-temperature physical extrusion retains the activity of linolenic acid, and there are no additives in the whole process, maintaining the natural quality of raw materials.

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Linseed Pretreatment Process

Due to the unique production process of pressing linseed oil at room temperature, the requirements for raw materials are more stringent, so fresh and full linseed should be selected. Immature, damaged, mildewed, and aged seeds cannot be used to produce linseed oil.

01.

Raw Material Preparation

First, wash the selected linseed to remove impurities and residues. The washed linseed is dried for further pressing.

02.

Crushing and Soaking

Crush the dried flax seeds to make them easier to crush. The crushed flax seeds also need to be soaked to increase the oil yield. The soaking time is generally 20-30 minutes and the temperature is about 40°C.The surface area of the crushed soybean is increased, which is conducive to the transfer of temperature and water during softening, improve the softening effect, and prepare for the subsequent rolling process.

The Steps Of Linseed Oil Press Line

Pressing Process

The soaked linseeds are put into a press and pressed. The pressure and temperature must be controlled during the pressing process to avoid the loss of nutrients. After pressing, linseed oil and residue are obtained.

Filtration and Decolorization

Filter the pressed linseed oil to remove impurities and residues. To improve the quality and taste of linseed oil, decolorization is also required. During the decolorization process, adsorbents such as activated carbon are used to remove pigments and odors from the oil.

Linseed Oil Refining Process and Packaging

After filtering and decolorizing, the linseed oil also needs to be refined to remove odors and impurities. Refined linseed oil needs to be packaged to protect the quality and hygiene of the oil.