Have you ever wondered how high - quality peanut oil is produced? In this article, we'll take you on a journey through the peanut oil production process, exploring the key环节 (links) that can significantly increase the oil yield. Let's start this exciting exploration!
The first step in peanut oil production is shelling the peanuts. Removing the shells not only makes the subsequent processes more efficient but also ensures that the impurities are reduced. On average, shelled peanuts can increase the overall processing efficiency by about 15% compared to unshelled ones.
There are two main methods for extracting peanut oil: hot - pressing and cold - pressing. Each has its own characteristics in terms of process, oil yield, product features, and the use of oil cakes.
| Process | Oil Yield | Product Features | Oil Cake Use |
|---|---|---|---|
| Hot - pressing involves heating peanuts before pressing, usually at around 120 - 130°C. | It can achieve an oil yield of up to 45 - 50%, which is relatively high. | The oil has a strong and rich aroma, suitable for stir - frying and deep - frying. | The oil cake can be used as animal feed or fertilizer. |
| Cold - pressing keeps the peanuts at a lower temperature, typically below 60°C. | The oil yield is around 35 - 40%, lower than hot - pressing. | The oil retains more nutrients and has a lighter flavor, ideal for salad dressings. | The oil cake can also be used for animal feed with better nutritional value. |
During the peanut cleaning process, various cleaning machines play important roles. Magnetic separators can remove metal impurities, and vibrating screens can separate large and small particles. Proper cleaning can increase the oil yield by about 3 - 5% as it reduces the interference of impurities during the pressing process.
Roasting is crucial for producing fragrant peanut oil. The right roasting temperature can enhance the aroma and improve the oil yield. A suitable temperature range for roasting peanuts to produce fragrant peanut oil is between 140 - 160°C. At this temperature, the peanuts can release their full - flavor potential, and the oil yield can be increased by about 2 - 3%.
Crushing the peanuts into smaller pieces is a key step to significantly increase the oil yield. When peanuts are properly crushed, the oil - containing cells are broken, allowing the oil to be more easily released. Studies show that proper crushing can increase the oil yield by about 5 - 8%.
The parameters of the oil - pressing process, such as pressure and time, also affect the oil yield. Optimized pressing parameters can ensure a higher oil extraction rate. After pressing, the oil cake can be further processed, such as solvent extraction, to extract the remaining oil, which can increase the overall oil yield by an additional 2 - 3%.
We understand that you may have some questions about peanut oil production. Here are some common questions and answers to help you better understand the process:
The production of peanut oil is a professional and complex process. Our brand is committed to strict quality control at every step, ensuring that you get the highest - quality peanut oil. If you're interested in our peanut oil products or want to learn more about our production process, click here to contact us now!
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