Peanut oil is a beloved cooking oil worldwide, valued for its rich flavor and numerous health benefits. Today, we'll take you on a journey through the peanut oil production process, with a special focus on how the crushing stage can significantly boost the oil yield. Our brand is committed to the pursuit of professional peanut oil production technology, ensuring that consumers can enjoy high - quality peanut oil.

The Overall Process of Peanut Oil Production

The production of peanut oil starts from the raw peanuts and goes through multiple steps to become the final product. The whole process can be broadly divided into several main stages: cleaning, crushing, pressing, and refining. Among these, the crushing stage is a crucial link that has a direct impact on the oil yield.

Hot - pressing and Cold - pressing Processes

There are two main methods for peanut oil production: hot - pressing and cold - pressing. Hot - pressing involves heating the peanuts before pressing. This method can increase the fluidity of the oil, and generally, the oil yield can reach about 40% - 45%. The hot - pressed peanut oil has a strong and rich aroma, which is very popular among consumers who like a more intense flavor. Cold - pressing, on the other hand, presses the peanuts at a lower temperature. Although the oil yield is relatively lower, usually around 35% - 40%, the cold - pressed peanut oil retains more of the original nutrients and has a lighter flavor, meeting the needs of health - conscious consumers.

Peanut Cleaning

Before the crushing process, peanuts need to be cleaned thoroughly. Special peanut cleaning machines are used, such as vibrating screens and magnetic separators. The vibrating screen can remove large impurities like soil, stones, and straws. Magnetic separators can effectively remove metal impurities. This step ensures the purity of the peanuts and the quality of the final oil.

Baking Temperature for Fragrant Peanut Oil

For those who prefer fragrant peanut oil, baking is an important step. The baking temperature has a significant impact on the flavor of the oil. When the baking temperature is around 120 - 150°C, the peanuts will develop a unique aroma. If the temperature is too low, the aroma may not be fully released; if it is too high, the peanuts may be burnt, affecting the quality of the oil.

Secrets of Boosting Oil Yield in the Crushing Stage

The crushing stage is the key to improving the oil yield. First, the size of the crushed peanuts is crucial. Generally, the peanuts should be crushed to a particle size of about 2 - 3 mm. This size allows the oil cells in the peanuts to be fully broken, facilitating the release of oil. Second, the moisture content of the peanuts also affects the oil yield. The optimal moisture content for crushing is about 8% - 10%. If the moisture is too high, the oil will be more difficult to separate; if it is too low, the peanuts may be too brittle, resulting in uneven crushing.

Oil Pressing and Oil Cake Treatment

After crushing, the peanuts are ready for pressing. Modern oil presses can efficiently extract oil from the crushed peanuts. After pressing, there will be oil cakes left. These oil cakes can be further processed. For example, they can be used as animal feed or as raw materials for organic fertilizers, achieving comprehensive utilization.

Interactive Q&A

We encourage you to leave your questions in the comments section below. Our professional team will answer your questions about peanut oil production as soon as possible. Do you want to know more about the details of a certain process? Or do you have any suggestions for improving the oil yield? Let's start the discussion!

Our brand is dedicated to the professional production of peanut oil, constantly researching and innovating to provide you with the best - quality peanut oil. If you are interested in our peanut oil products or production technology, please click the button below to contact us and start a wonderful cooperation journey!