Peanut oil is a staple in kitchens around the world, valued for its rich flavor and numerous health benefits. Today, we'll take you on a journey through the entire production process of peanut oil, from raw materials to your dining table, revealing the key factors that determine its quality and yield.

1. Shelling the Peanuts

The first step in peanut oil production is shelling the peanuts. This process is crucial as it prepares the peanuts for subsequent processing. Modern shelling machines can efficiently remove the shells, with a shelling efficiency of up to 98%. This ensures that only high - quality peanuts enter the next stage of production, laying a solid foundation for the final product.

2. Hot Pressing vs. Cold Pressing

There are two main methods of extracting peanut oil: hot pressing and cold pressing. Hot pressing involves heating the peanuts to a certain temperature before extraction. This method can increase the oil yield, typically achieving an oil extraction rate of around 45% - 50%. The resulting oil has a strong peanut flavor, making it popular for cooking dishes that require a rich taste.

On the other hand, cold pressing is carried out at a lower temperature, usually below 60°C. This method preserves more nutrients in the oil, such as vitamin E and unsaturated fatty acids. Although the oil yield is relatively lower, around 35% - 40%, the quality of the oil is high, and it is often preferred for those who value health and naturalness.

3. Peanut Cleaning and Pretreatment

Before the actual extraction, the peanuts need to be thoroughly cleaned. This step removes dirt, debris, and other impurities, ensuring the purity of the raw materials. After cleaning, the peanuts may undergo some pretreatment processes, such as sorting to remove any damaged or moldy peanuts. This strict quality control at the raw material stage is essential for producing high - quality peanut oil.

4. The Role of Baking Temperature in Cooking

If hot pressing is chosen, the baking process is a critical step. The baking temperature significantly affects the quality and flavor of the oil. Generally, a baking temperature between 120°C - 150°C is optimal. At this temperature range, the peanuts can release their aroma and flavor, while also facilitating the oil extraction process.

5. The Impact of Crushing on Oil Yield

Crushing the peanuts is an important step that can affect the oil yield. A well - crushed peanut can expose more oil cells, making it easier for the oil to be extracted. Modern crushing equipment can break the peanuts into small particles, increasing the contact area between the peanuts and the extraction equipment, thereby improving the oil extraction efficiency.

6. The Oil Extraction Process

Most peanut oil manufacturers use screw - type peanut oil presses. These machines can exert continuous pressure on the crushed peanuts, gradually squeezing out the oil. The screw - type peanut oil press has a high oil extraction efficiency, and it can extract a large amount of oil in a relatively short time. For example, a medium - sized screw - type press can process about 500 - 1000 kilograms of peanuts per day.

7. Reusing the Oil Cake

After the oil extraction, the remaining oil cake is not wasted. It can be used as animal feed or fertilizer. This practice not only reflects an environmental - friendly concept but also maximizes the utilization of resources, reducing production costs and environmental impact.

8. Refining and Filling

The extracted crude oil still needs to go through a refining process to remove impurities, odors, and colors. This process includes degumming, deacidification, decolorization, and deodorization. After refining, the peanut oil becomes clearer, more stable, and has a longer shelf - life. Finally, the refined oil is filled into bottles or containers, ready for distribution.

As you can see, the production of peanut oil is a meticulous and rigorous process. Every step is carefully controlled to ensure the highest quality and optimal yield. When you choose our peanut oil, you can be confident that you are getting a product that is produced with the utmost care and attention to detail. Don't miss out on this high - quality peanut oil. Contact us now to place your order and experience the difference!