Knife Mills

The Retsch knife mills provide completely homogeneous and reproducible size reduction in seconds, ensuring that a representative sample can be taken from the grinding container. Owing to reproducible settings of parameters, programs and sequences, the knife mills ensure analytical results with minimum standard deviation. Together with the wide selection of lids and containers, the aforementioned features allow for adaptation of knife mills to individual application requirements and make them professional devices superior to any commercial household mixer.

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The knife mill GRINDOMIX GM 200 is optimally suited for grinding and homogenizing of food and feed. With its two sharp, robust blades and a powerful 1000 W motor, it allows for processing sample volumes of up to 0.7 liters quickly and effectively.
The GM 200 is not only ideal for homogenizing substances with a high water, oil or fat content, but is also a great choice for grinding dry, soft and medium-hard products. The quick homogenization process without significant temperature rise ensures preservation of the volatile sample components.


With a special cutting knife system and a variable-volume grinding chamber, the Retsch laboratory knife mill GRINDOMIX GM 300 can process a great variety of sample materials quickly and reproducibly to completely homogeneous analytical samples – and all that within seconds. The 5000 ml grinding chamber volume allows this mill to easily homogenize an entire loaf of bread or a complete pizza in one working run.