Frequently, the equipment used to package products will not function efficiently or properly if the surrounding air is humid. Candy wrapping machines and packaging machines for food powders or drug packets are typical examples.
Something as simple as a cake mix becomes a double problem; not only does the powdery mix clump and not flow properly in humid conditions, but the packaging equipment is also hindered by the humidity.

Depending on the product, it may be necessary to dry the packaging room and even go to the extreme of providing a dry bath for storage bins or hoppers, especially where powders are used. In situations where packages are heat-sealed, a container's own moisture content may adversely affect the adhesion of the sealing material being used. Here neither the product nor the machinery
is directly responsible for the problem; instead, the moisture content of the package is the culprit.
Surrounding the area with dry air is the solution.