Bulk pack-off systems are widely used in the food processing industry for the packing of dry particulate materials (dry products) in bags, containers, etc. As product handling invariably involves product flow in possible contact with the environment, potential hygienic risks are involved. Therefore, packing procedures must meet hygienic processing standards, and all components in contact with product have to be of approved hygienic design. This guideline describes the design and operational features of bulk pack-off systems handling food and food related dry products.