Doc. 22 General hygienic design criteria for the safe processing of dry particulate materials
Second Edition, March 2014 - Dry food processing and handling requires equipment that are different from those typically associated with wet and liquid products. This is the first in a series of documents that go beyond equipment design and covers installation and associated practices. In the case of dry materials, other considerations include material lump formation, creation of dust explosion conditions, high moisture deposit, formation in the presence of hot air, and material remaining in the equipment after shutdown. Appropriate cleaning procedures are described, dry cleaning being favoured to reduce risks of contamination.
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Doc. 26 - Hygienic engineering of plants for the processing of dry particulate materials (2003).
NOTE: Document was withdrawn in March 2016. Doc. 26 has been integrated into Doc. 44.