To extract the best quality peanut oil, a screw oil press is one of the most efficient and reliable methods. However, to ensure maximum yield and the preservation of oil quality, it's important to understand how to properly operate and maintain the screw oil press. In this article, we will discuss the key points you should pay attention to when using a screw oil press to press peanut oil.

1. Selecting the Right Screw Oil Press

The first points need to be noted when pressing peanut oil with screw oil press is selecting the right peanut oil screw oil press. Different screw presses have varying capacities, features, and extraction efficiencies. Consider the following factors when choosing a screw oil press:

Capacity and Size: Match the press capacity to the scale of your production needs. For large-scale operations, a high-capacity press is required, while smaller operations can opt for a medium or small-sized model.

Material Quality: Ensure the press is made of high-quality, durable materials, especially the screw and pressing chamber. This will ensure consistent performance and longevity.

Efficiency: Choose a model that provides high oil extraction efficiency. The press should be able to extract as much oil as possible without excessive wastage.

2. Preparing the Peanuts

Before using the peanut oil screw oil press, you should pay attention to proper preparation when using a screw oil press to press peanut oil. Proper pretreatment of the raw material is essential for maximizing oil extraction and ensuring high-quality oil:

Cleaning: Peanuts must be thoroughly cleaned to remove any dirt, dust, or foreign particles. Contaminants in the raw peanuts can affect both the quality of the oil and the operation of the press.

Roasting: Roasting peanuts at the right temperature can significantly improve oil yield. However, excessive roasting may cause burning or a bitter taste in the oil. The ideal roasting temperature for peanuts is around 120–130°C (248–266°F).

Moisture Content: Ensure that the moisture content of the peanuts is controlled. Too much moisture can lead to inefficient pressing, while peanuts that are too dry may result in oil degradation.

Screw oil press machines

3. Operating the Screw Oil Press

Once the peanuts are ready, the next step is to operate the peanut oil screw oil press correctly:

Feeding the Peanuts: Feed the peanuts into the hopper gradually. Avoid overloading the press, as this can cause blockage or a decrease in the efficiency of oil extraction.

Adjusting Pressure: The pressure within the screw press should be adjusted depending on the condition of the peanuts. If the pressure is too high, it could lead to excessive heat generation, which might affect the oil quality. On the other hand, low pressure could result in low extraction efficiency.

Temperature Control: The temperature of the pressing chamber should be maintained within an optimal range, usually between 60–120°C (140–248°F). Overheating can damage the oil's nutrients, while too low a temperature might reduce oil yield.

4. Monitoring and Maintenance

Pay attention to the monitoring and maintenance of the screw oil press when using a screw oil press to press peanut oil. Regular monitoring and maintenance of the screw oil press are vital for ensuring long-term performance and avoiding any operational issues:

Check for Clogs: Regularly inspect the press for any clogging of the screw or pressing chamber. If any blockages occur, they should be cleaned immediately to prevent damage.

Lubrication: Proper lubrication of the press parts helps reduce friction, wear, and tear, ensuring smooth operation.

Cleaning the Press: After each use, clean the press thoroughly to remove any residual oil, which can cause the machine to malfunction or affect the quality of future oil extraction.

Hot sale screw oil press machine

5. Storage and Quality Control

After pressing the peanut oil, it’s crucial to store and manage the oil properly to preserve its quality:

Storage Conditions: Store the extracted peanut oil in clean, airtight containers to prevent oxidation. Exposure to light and air can degrade the oil and reduce its shelf life.

Quality Control: Conduct regular quality checks to ensure the oil meets the desired standards. Factors such as purity, taste, and aroma are key indicators of high-quality peanut oil.

The above is what we should pay attention to when using the screw oil press to press peanut oil. The automatic temperature-controlled oil press manufactured by Henan Glory is equipped with an intelligent temperature control system to adjust the temperature of the entire oil pressing process, effectively reducing oil oxidation and nutrient loss. With its stable and energy-saving characteristics, it has become an ideal choice for the oil pressing industry