Flaxseed (also known as linseed) is rich in alpha-linolenic acid (ALA), an essential omega-3 fatty acid. With an ideal linolenic-to-linoleic acid ratio of 1:4, flaxseed oil is often called "land-based deep-sea fish oil" . However, linolenic acid is highly heat-sensitive and easily oxidized. When the critical temperature is exceeded, its activity begins to be destroyed, causing significant nutrient loss .
With 38+ years of experience in grain and oil intelligent equipment, Henan Huatai Intelligent Equipment Group has developed a specialized low-temperature physical pressing line that preserves natural nutrients while delivering premium-quality flaxseed oil.
Why Low-Temperature Physical Pressing is Essential
Traditional high-temperature pressing or chemical refining destroys the activity of linolenic acid and may introduce additives that compromise the oil's natural quality. Huatai's low-temperature physical pressing method uses no heat treatment and no chemical additives throughout the entire process, retaining the full nutritional value and natural flavor of flaxseed oil .
Complete Flaxseed Oil Production Process
1. Raw Material Preparation
Low-temperature pressing demands high-quality raw materials. Only fresh, full, undamaged flaxseeds are selected. The seeds are washed to remove impurities and residues, then naturally dried to control moisture content .
2. Crushing and Soaking
Dried flaxseeds are crushed to facilitate oil release. The crushed seeds are then soaked for 20-30 minutes at approximately 40°C – precisely controlled to balance oil yield and nutrient preservation .
3. Low-Temperature Physical Pressing
This is the core stage. Soaked flaxseeds are fed into Huatai's custom-designed press. Pressure and temperature are strictly controlled throughout – avoiding heat damage to nutrients. After pressing, crude flaxseed oil and residue (meal) are separated. The residue can be further processed into animal feed or organic fertilizer .
4. Filtration and Decolorization
Crude oil undergoes fine filtration to remove impurities. Decolorization uses natural adsorbents such as activated carbon to remove pigments and odors without introducing chemicals, ensuring pure, clean oil .
5. Refining and Packaging
Huatai's refining process avoids chemical alkali refining, using only hydration degumming, activated carbon deodorization, cooling, filtration, and dewaxing – preserving oil quality without harsh chemical treatments . The refined oil is then packaged using intelligent filling equipment with precise volume control and sealed packaging to prevent oxidation from air and light exposure.
Huatai's Advantages
Customized Solutions for Every Scale
Huatai rejects a "one-size-fits-all" approach. Every production line is tailored to client capacity, site, and budget requirements. Equipment features large processing capacity, low failure rate, long service life, and multi-seed compatibility – reducing overall investment costs.
Low-Temperature Green Refining Process
Huatai uses hydration degumming and activated carbon dephosphorization – avoiding chemical refining methods. No chemical additives are introduced, helping clients build differentiated advantages in the premium health oil market .
Comprehensive Turnkey Services
With a 100,000+ m² intelligent manufacturing base and an R&D center in Zhengzhou, Huatai has earned multiple industry honors and holds 100+ national patents. The company maintains 22 overseas service offices and a spare parts warehouse, offering 72-hour response after-sales service. Turnkey delivery covers design, manufacturing, installation, commissioning, and training. Huatai has served over 2,000 customers and exported products to 70+ countries and regions worldwide.
As a National Green Factory, a National "Little Giant" Enterprise, and a New Third Board listed company, Huatai is committed to technological innovation and green, intelligent transformation of the grain and oil processing industry. From carefully controlled low-temperature pressing to complete turnkey solutions, Huatai helps every client produce premium flaxseed oil that preserves nature's finest nutrition.
