When mixing bulk solids, residues can pose the threat of cross contamination or introducing product impurities so what are the options for mixer cleaning if these threats are to be avoided?
As rinsing mixer and screw with water and cleaning agents brings unwanted moisture into the system which can cause creation of lumps in the product, wet spots behind O-rings or gaskets and generate vast quantities of contaminated water or other cleaning fluids that have to be dealt with, we consider the best dry cleaning approaches to minimise the propagation of bacteria.