Peanut Butter Processing Steps: A Wonderful Journey

Peanut butter, a delicacy loved by consumers around the world, is not only a spread on breakfast toast, but also a seasoning for many dishes and snacks.

However, behind every jar of peanut butter, there is a delicate and complex processing technology. This article will take you to an in-depth understanding of the peanut butter processing steps in the factory.

From raw material processing to finished product packaging, the steps required are pretreatment, roasting, cooling, peeling, grinding, blending, homogenization, degassing, cooling, and filling.

1. Pretreatment

The production of peanut butter starts with high-quality peanut raw materials. First, the peanuts are strictly screened to remove impurities and stones to ensure the purity and safety of subsequent processing. Next, the peanuts need to be shelled to remove the hard shell and retain only the plump peanut kernels.

2. Roasting and cooling

The peanut kernels will be sent to the roaster machine, and the precisely controlled temperature will make the peanut kernels emit a rich aroma and stimulate their natural oils, which is an important part of the peanut butter processing. During the roasting process, the peanuts need to be evenly distributed in the oven to ensure that each peanut can receive the same thermal treatment to achieve the ideal color and aroma.

After roasting, the peanuts need to be cooled quickly to terminate the internal thermal reaction, prevent overcooking, and facilitate the next step of peeling.

3. Peeling and air separation

The cooled peanuts are sent to the peeling machine. Using the principle of rubber roller extrusion and crushing, the peanuts are broken into half grains and the outer skin falls off. Then, using the principle of air separation, the wind is used to blow away the lighter peanut skin, while the heavier peanut kernels continue to the next step.

4. Grinding and modulation

The peeled peanut kernels enter the key grinding stage. The first step is coarse grinding, which initially crushes the peanut kernels into smaller particles. Subsequently, these particles will be sent to the colloid mill for fine grinding until the desired fineness is achieved. During this process, some peanut butter products may also add a small amount of salt, sugar or other condiments to adjust the flavor to meet the taste needs of different consumers.

5. Homogenization and stabilization

In order to improve the stability and taste of peanut butter, the homogenization step is indispensable. In this step, the peanut butter will be heated to 60-70℃ in the mixing tank, and monoglyceride and soy protein powder will be added as emulsifiers to promote oil-solid separation, avoid stratification, and ensure that the product maintains consistent quality during the shelf life.

6. Degassing and cooling

Degassing is an important step in the processing of peanut butter, which aims to remove bubbles generated during the mixing process and prevent the product from oxidizing and deteriorating during storage. After degassing, the peanut butter will be cooled to a suitable temperature and prepared for the final filling stage.

7. Filling and packaging

In a sterile environment, the peanut butter is accurately measured and filled into pre-sterilized containers. The filling temperature is controlled between 10℃ and 20℃ to maintain the best condition of the product. The container is then sealed and externally packaged, including labeling and boxing, ready for the market.



Conclusion:

Through the detailed introduction of the processing steps above, we can understand the wonderful industrial journey of peanut butter processing, and each step reflects the ingenuity of peanut butter processing. It is this series of rigorous steps that give peanut butter its unique flavor and texture, making it a delicious delicacy on tables around the world.

The peanut butter processing machines developed and produced by our company can complete all the above processing steps with high quality. Highly automated equipment and mature technology can help you improve the overall value of peanut butter products. Welcome to inquire!

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