how to press edible oil using a seed oil press
Pressing edible oil is a process that involves extracting oil from various oil seeds. The use of seed oil press machines, powered by electric motors or diesel engines, has made this process more efficient and convenient.
how to press edible oil
Pre-Treatment of Oil Seeds
Before the pressing process, it is essential to pre-treat the oil seeds. This pre-treatment can involve peeling or cooking the seeds, which helps to enhance the oil output. Peeling removes the outer layer of the seeds, while cooking softens them, making it easier for the oil to be extracted. It is crucial to select the appropriate pre-treatment method based on the specific type of oil seed you are using.
Pre-Heating the Pressing Cage
To ensure optimal oil extraction, it is necessary to pre-heat the pressing cage of the seed oil press. This can be done by turning on the heating switch and allowing the cage to heat up for approximately twenty minutes. The purpose of pre-heating is to raise the temperature to the required level for pressing. A suitable temperature ensures efficient oil extraction and helps maintain the quality of the oil.
Feeding the Oil Seeds
There are two methods for feeding the oil seeds into the seed oil press: manual labor and an auto elevator. With manual labor, the seeds are fed into the machine manually. However, using an auto elevator enables continuous feeding, which is more efficient for large-scale oil pressing operations. The choice between the two methods depends on the scale of production and available resources.
Pressing Process
The pressing process is the key step in extracting edible oil from the oil seeds. It is the screw shaft-driving force that exerts pressure on the seeds, extracting oil in the process. As the screw shaft rotates and the oil seeds are continuously fed, the space between the rings and the pressing screws gradually decreases, resulting in tighter squeezing. This squeezing action extracts the oil from the seeds.
Collection of Edible Oil
As the edible oil is pressed out from the oil seeds, it flows onto an oil receiving plate. This plate collects the oil, which is then directed into a container for further processing or storage. It is important to ensure a clean and properly maintained oil receiving plate to avoid contamination and preserve the quality of the oil. Regular cleaning and inspection are recommended.
Refining Edible Oil
The oil obtained through the pressing process is impure and may contain free-floating particles. To produce high-quality edible oil fit for human consumption, it is necessary to refine the oil. Refining processes eliminate components that can negatively impact the taste, stability, appearance, or nutritional value of the oil. These processes convert crude oil into refined oil products.
With the use of oil press machines, this process has become more efficient and convenient. Proper pre-treatment of the oil seeds, pre-heating of the pressing cage, feeding of the oil seeds, and pressing process are crucial steps in achieving optimal oil extraction and maintaining the quality of the oil. Refining processes further enhance the quality of the edible oil, making it fit for human consumption.