Introdution of Peanut Butter Grinder
Peanut butter grinder is a colloid mill, the basic working principle is shearing, grinding and high-speed stirring. Grinding relies on the relative movement of the two toothed grinding ring, peanut are subject to large shear and friction forces during the grinding process, and at the same time, they vibrate at high frequency and vortex under the action of complex forces, the peanut can be effectively dispersed, floated, crushed and homogenized.
The split colloid mill avoids the disadvantages of low vertical speed and easy direct contact between the liquid and the motor. Mainly used in the pharmaceutical industry: syrup, ointment, eye ointment, sugar-coated sizing, raw materials of Chinese medicine, cod liver oil, etc.
There are 2 types of colloid mill
1. Colloid mill with circulating tube, it is mainly used to grinding watery materials, which can automatically and repeatedly process the materials and facilitate the connection between the previous and following processes.
2. Straight discharge colloid mill with a scraper, it is used to grinding viscous paste such as peanut butter, chilli paste, sesame paste, almond butter, fish paste, meat paste, chickpea paste, bean paste etc.
However, many peanut butters on the market will be separated from solids and oil after being left for a period of time. Oil will float on the upper of the container and solid butter will sink on the bottom. When making peanut butter, one of the main requirements is to refine the granularity of the peanuts. The particle size must be in the micrometer range to ensure the quality of the peanut butter, and it is not easy to release oil. The oil separation is mainly because the granularity of the peanut is not fine enough when it is broken, which makes the oil and other ingredients such as protein, fiber and other carbohydrates insufficient in binding power, and the entire system for making peanut butter requires the addition of some additives to enhance the peanut butter stability.
Peanut butter grinder is the best machine for grinding viscous food, because it achieve shear mixing emulsification of raw materials at a high speed, and the grinded materials can achieve a fine precision of 2-40um. Operator should be aware of that peanut butter grinder is a kind of moisture grinding equipment, water or oil should be added when make peanut butter or peanut beverages, etc. Raw peanut kernels cannot be ground directly. The fried peanut has sufficient oil content, and the prepared peanut butter tastes very delicious. (It is also reminded here that the peanut red skin also needs to be removed by peanut peeling machine, Otherwise the peanut butter has a poor taste, what is more, it also cause damage to the grinder).