Fluidized beds made of polyethylene (PE) or stainless steel are also used for homogenization. Homogenizing silos with sintered fluidized bed materials, as used by Zeppelin, are very well suited for this purpose. Large flakes are preserved. The homogenizing silos have a very good mixing behaviour and also cope well with larger batches. Depending on the bulk density, these silos can hold up to 60 tons of starch products. Whereas the temperature resistance of a PE fluidized bed is up to 70°C, the temperature resistance of stainless steel is much higher.