The paddle Blender, also known as a sterile homogenizer, can directly extract bacteria from solid samples. Simply add the original sample (large samples need to be cut into blocks of about 10×10mm) and the diluent into a sterile sample bag, and then place the sample bag into the slapping homogenizer. The blades will slap and hammer to generate pressure, cause oscillation, and accelerate mixing, so that the microbial components in the solution are evenly distributed, and the sample processing can be completed. Effectively separate the microbial homogenization samples contained inside and on the surface of the solid sample, ensuring that all samples are mixed in the sterile bag. The homogenized sample can be used as a representative of the original for subsequent analysis without the risk of sample changes and cross contamination. Use a disposable sterile homogenization filter bag to isolate the operation, ensure hygiene and safety, no contact with the instrument, no sample leakage, and no need for system cleaning. It has the characteristics of convenience and speed, accurate results, gentle homogenization, small sample contamination, no damage, no heating, no need for sterilization, no need to wash utensils, and good repeatability requirements.