What is the process of making refined groundnut oil?

In order to improve the quality of groundnut oil, ensure health, mild taste, and nutritional value of the groundnut oil, the most groundnut oil producer choose to refine the crude groundnut oil into refined groundnut oil, then sell them. If you also want to know the process of making refined groundnut oil, here is an overview of the groundnut oil refining process:

1.Degumming:

Degumming machine is the first tool used in the process of making refined groundnut oil. Pumping crude groundnut oil into oil refining tank, stirring quickly, and simultaneously heating by steam or heat-transfer oil(in coiled heater). Then add some hot water to remove phospholipid in crude groundnut oil. But during groundnut oil degumming process, you should control the water amount, temperature and water adding speed. If phospholipid lasts long suspended in oil, which is hard to gather to make flocculent precipitate. We can rise up the speed of adding water, conversely slow down. Then we can remove the gums in the crude groundnut oil by precipitation.

For the batch type and semi-continuous type groundnut oil refining machine, our Doing company adopts precipitation separation method, as for continuous groundnut oil refining machine, we adopts centrifuge separation method. If this is your first time entering this industry, it is recommended that you choose batch type cooking oil refining with low investment, small footprint, easy to operate. The cost of batch type cooking oil refining machine depends on the heating method of the machine and the processing tonnage.

Groundnut oil degumming and deacidifying machine

2.Deacidifying

Deacidifying is usually the tool used in the process of making refined groundnut oil, which is aimed to remove free fatty acids from crude groundnut oil. We usually add the food grade alkaline to the degummed oil for acid-base neutralization reaction to remove the free fatty acids, and then remove the soapstock by heating and natural sedimentation.

3.Decolorizing

Decolorizing is usually used in the process of making refined groundnut oil to remove impurities such as pigments, metals, and residual soap from the groundnut oil. Inhale definite amount of decoloring agent(white clay or acticarbon)into the refined groundnut oil, continuously stirring and heating for a period of time. After that, pump the mixture of oil and white clay into filter to separate oil and waste white clay.

Groundnut oil decolorizing machine

4.Deodorizing

Deodorizing process can remove odors and flavors from the groundnut oil. It refers to pump decolorized groundnut oil into deodorizing machine, when oil temperature reaches above 100℃, injecting the direct steam to take the odors away. Our company's refining machine adopts 304 stainless steel in the deodorizing section to meet the production needs and ensure the refining quality.

Groundnut oil deodorizing machine

This is the process of making refined groundnut oil, and the machines used also ensure that the groundnut oil meets quality standards and is suitable for various applications in the food industry. If you have any questions about the process of making refined groundnut oil or groundnut oil refining machine, welcome to contact Henan Doing Company. You can choose it based on your the quality of crude oil, the requirement of the process of making refined groundnut oil and your budget, and our sales and engineer will give you suitable choice.