Peanut oil is a staple in many households around the world, known for its rich flavor and numerous health benefits. This专题报道 will take you on a journey through the entire peanut oil production process, from raw materials to the dinner table, and reveal the critical impacts of each step on the oil's quality and yield.
The production process begins with shelling the peanuts. High - quality peanuts are carefully selected and sent to the shelling machines. This step is crucial as it separates the peanuts from their hard shells, ensuring that only the clean kernels are used for oil production. On average, about 70% of the weight of the shelled peanuts is the kernel, which contains the precious oil.
There are two main methods of extracting peanut oil: hot - pressing and cold - pressing. Hot - pressing involves heating the peanuts to a temperature between 120°C - 150°C before extraction. This method can achieve a higher oil yield, typically around 40% - 45%. The oil produced has a stronger flavor and a darker color. On the other hand, cold - pressing is done at a lower temperature, usually below 60°C. Although the oil yield is relatively lower, around 30% - 35%, the cold - pressed oil retains more of the natural nutrients and has a lighter, more delicate flavor. Which method do you think is better for your cooking needs?
After shelling, the peanuts go through a thorough cleaning and pre - treatment process. This step removes any remaining impurities such as dust, stones, and damaged kernels. Clean peanuts are essential for producing high - quality oil. The pre - treatment also includes drying the peanuts to an appropriate moisture content, usually around 8% - 10%. This helps to prevent mold growth and ensures a more efficient extraction process.
Roasting is a key step in the production of peanut oil. The roasting temperature significantly affects the flavor, color, and nutritional value of the oil. If the temperature is too low, the peanuts may not release enough oil, resulting in a lower yield. If the temperature is too high, it can cause the peanuts to burn, leading to a bitter taste and a loss of nutrients. Generally, a roasting temperature of 140°C - 160°C is considered optimal for achieving a good balance between oil yield and quality.
The crushing step is designed to break the peanuts into smaller pieces, increasing the surface area for oil extraction. By crushing the peanuts, the oil cells are ruptured, making it easier for the oil to be released during the pressing process. Advanced crushing techniques can increase the oil yield by up to 5% compared to non - crushed peanuts.
For oil extraction, a screw - type peanut oil press is commonly used. This machine applies pressure to the crushed peanuts, squeezing out the oil. After extraction, the remaining oil cakes still contain some oil and valuable nutrients. These oil cakes can be reused in various ways, such as being used as animal feed or as raw materials for the production of bio - fuel, maximizing the utilization of resources.
The extracted crude oil then undergoes a refining process to remove impurities, such as free fatty acids, pigments, and odors. The refined oil is clearer, has a longer shelf life, and meets higher quality standards. Finally, the refined oil is filled into bottles or containers, ready to be sent to the market.
The entire peanut oil production process is carried out with great precision and care. Every step is strictly monitored to ensure the highest quality and safety of the product. By understanding this meticulous process, consumers can have more confidence in our brand and be assured of the quality of the peanut oil they purchase. We invite you to choose our peanut oil and experience the difference of a product made with such严谨工艺. Click here to make your purchase today!
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