There may be multiple reasons for the blackening of the surface of the meat cutter disc, and the following are some possible factors:

Firstly, improper handling of the meat grinder blades or outdated blades may result in contamination of the meat during cutting, leading to blackening of the disc surface. The blade will gradually wear out during use. If the wear is severe or there are uneven surfaces on the blade, it may cause excessive heat to be generated during meat grinding, resulting in oxidation and blackening of the blade surface.

Secondly, the prolonged use of the meat grinder has resulted in the accumulation of a large amount of meat residue inside the machine, which is difficult to clean, leading to the growth of bacteria and blackening of the blade surface. In this case, it is necessary to thoroughly clean and disinfect the meat grinder to eliminate bacteria and stains.

In addition, if the operating temperature of the meat grinder is too high, it may cause oxidation of the meat during the grinding process, resulting in the meat turning black and causing the surface of the cutter head to turn black. This may be due to prolonged continuous operation of the meat grinder or poor heat dissipation of the meat grinder. In this case, it is necessary to check whether the cooling system of the meat grinder is normal, and whether the meat grinder has been working continuously for a long time. If necessary, it should be stopped and cooled for a period of time before continuing to use.

In addition, factors such as uneven processing, loose or damaged cutterhead may also cause the cutterhead to shake, resulting in excessive heat generation during the use of the meat grinder and causing the surface of the cutterhead to turn black. For these issues, it is necessary to promptly check the installation of the cutterhead and whether the processed ingredients are evenly distributed. If necessary, the cutterhead should be adjusted or replaced in a timely manner.

Finally, improper cleaning of the meat grinder may also result in blackening of the blade surface. When cleaning the meat grinder, specialized cleaning agents should be used and the correct cleaning steps should be followed. At the same time, after cleaning, the meat grinder should be thoroughly dried to avoid residual moisture causing rust and blackening.

In summary, there may be multiple reasons for the blackening of the surface of the meat grinder disc, which need to be analyzed and treated according to specific situations. In order to maintain the normal use and hygiene safety of the meat grinder, we should regularly clean and disinfect it, replace severely worn blades in a timely manner, and pay attention to the use and maintenance of the meat grinder.