Keeping water out, and why a dry room matters

Why water is the problem here

The product itself cannot support growth. A damp patch in a drain, under equipment or in a wet seam can, and anything established there is next to a product with no downstream control. The organism does not need to grow in the jar; it only needs to reach it.

Dry cleaning where possible

Brushing, vacuuming and scraping rather than hosing, with wet cleaning reserved for when it is genuinely needed and followed by thorough drying. This is counterintuitive for anybody who has worked in a wet-food kitchen, where the instinct is that more water means cleaner.

Dry the things the product touches

Jars, utensils, hoppers and containers. A washed jar that is still damp is both a seizing risk and a contamination risk, and the second one is invisible. Air drying covered, rather than draining on an open rack, is the small habit that matters.

Watch condensation

A warm product in a cold room, or a cold jar filled with warm butter, puts water on a surface that was dry. That is a design question about the flow of a production day rather than a cleaning one, and it is easy to miss because nothing looks wrong.

Storage of raw material too

Nuts held damp are nuts where mold can grow, which connects this page to the aflatoxin one. Cool, dry, off the floor and in sealed containers is not a detail; it is the same control appearing in a different place.

Written as a procedure, not a habit

What gets cleaned, how, how often, how it is dried and who signs it off. In a low-moisture facility this is a documented control rather than housekeeping, and it is one of the things an inspector will ask to see alongside the roast records.

References