Rapeseed oil is an edible oil extracted from rapeseed by pressing or extraction. Different processing technologies have different effects on the quality, taste and price of rapeseed oil. There are three commonly used rapeseed oil processingtechnologies. Let's take a brief look at these three technologies.

1. Cold pressing process

Cold pressing process is a commonly used process for producing edible oil. Cold pressing refers to pressing at low temperature, which can retain the nutrients and flavor in rapeseed as much as possible. Because it is not treated at high temperature, cold-pressed rapeseed oil has high nutritional value, refreshing taste, and rich rapeseed oil aroma. However, the oil yield of cold pressing process is low, the production cost is high, so the price is relatively high.

2. Hot pressing process

Hot-pressed rapeseed oil requires steaming and frying of rapeseed. Steaming and frying process is a common pretreatment process in the canola oil production line. It can control the temperature and moisture of the raw materials, condense oil, make it more conducive to squeezing oil, and increase the oil yield of rapeseed. In addition, the aroma of rapeseed will be stimulated during the frying process, making rapeseed oil have a strong flavor. It is a common process for producing fragrant edible oil. Although the nutritional value of hot-pressed rapeseed oil is not as good as that of cold-pressed rapeseed oil, it has a high oil yield and a mellow taste, and is also very popular with consumers.

3. Extraction process

The extraction process uses organic solvents and oils to fully contact and soak in the extraction equipment to extract the oil from the rapeseed, and then remove the solvent through evaporation, stripping and other processes to obtain extracted rapeseed oil. The extraction process can control the residual oil rate of rapeseed meal to 1%, and the extraction equipment has a large output, high efficiency and high degree of automation, which is very suitable for large rapeseed oil factories. However, there will be solvent residues in the extracted rapeseed oil, so it needs to be refined before it can be eaten. The production cost of extracted rapeseed oil is low, and the quality and taste are different from those of cold-pressed and hot-pressed processes, and the price is relatively low.

The above three processes are common processes for producing edible oils, and different processing technologies have different effects on the quality, taste and price of rapeseed oil. When choosing process equipment, the oil mill should consider the development direction of the oil mill, fully communicate its own needs with the equipment manufacturer, and facilitate the manufacturer's technical staff to provide equipment solutions. For manufacturers, equipment and manufacturers with experience, strength and technical support are the basis for the development of oil mills. It is very important to choose a suitable set of equipment. It is recommended to visit Huatai Oil Machinery. Huatai has been engaged in the production and research and development of oil equipment for 36 years. The manufacturer is strong and the equipment quality is guaranteed. From scheme design to production to installation and commissioning, the whole process of tracking service, professional installation team door-to-door service, escort the smooth production quotation of the oil mill.

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