What Are the Processing Techniques for Tea Seed Oil ?

Tea seed oil primarily contains unsaturated fatty acids such as oleic acid and linoleic acid. It does not contain harmful substances like erucic acid or cholesterol, and its fatty acid content and ratio are very similar to olive oil. It is often referred to as "Eastern olive oil," and some of its nutritional indicators are even higher than olive oil. The linoleic acid and linolenic acid found in tea seed oil are rich in unsaturated fatty acids, which can help lower blood lipids, improve blood viscosity, and promote vascular health. This makes it particularly beneficial for middle-aged and elderly individuals suffering from hypertension or arteriosclerosis, providing excellent health benefits.

Common processing techniques for tea seed oil include pressing and extraction. To preserve the nutritional components and meet consumer demand for green and healthy products, most oil factories adopt the pressing method or the pre-pressing-extraction method. 

Three oil processing techniques are widely used and mature in tea seed oil production.

Cold pressing

Cold pressing produces high-quality oil with excellent appearance and complete nutrient retention but has a lower oil yield and higher production costs.

Hot pressing

Hot pressing on the other hand, produces oil with a strong aroma, higher production efficiency, and higher oil yield. However, it requires refining for consumption, and nutrient retention is not as good as cold-pressed oil. However, hot pressing is cost-effective overall and widely accepted by consumers. Pressing techniques are commonly used in small and medium-sized edible oil processing plants due to their flexible production line configurations and controllable equipment investment.

The pre-pressing-extraction process

It involves initially pressing the oilseeds to extract oil and then sending the pressed tea seed cakes for further processing in extraction equipment to retrieve the residual oil. During extraction, organic solvents are mixed with the material to effectively extract the oil from the material. However, trace amounts of solvent residues may remain in the crude oil, which must be removed through subsequent refining processes to eliminate impurities, solvent residues, and substances harmful to oil quality and human health. Once the oil meets the required standards, it can be sold. Extraction equipment is suitable for large-scale edible oil processing plants with daily capacities ranging from tens of tons to hundreds or even thousands of tons, due to its high processing volume, automation level, and equipment investment cost.

Huatai Group has been committed to technical innovation and product optimization, continuously enhancing the R&D and manufacturing capabilities of intelligent equipment to provide customized, efficient, and reliable solutions to clients. The successful delivery of this project once again demonstrates Huatai Group's outstanding strength and industry status in the field of intelligent equipment. As a company with rich experience and expertise in intelligent equipment, Huatai Group has built a reputation for technological innovation and excellent quality. This delivery of the tea seed oil processing and refining dewaxing project showcases the company's professional standards and exceptional quality in the oil processing industry.