The environment inside a walk-in cooler or a walk-in freezer needs to look and smell clean. If an odor develops, this can suggest unseen bacteria and germs on the interior of the unit that could threaten the food inside. These odors need to be rooted out at their source and removed.
The Root of the Problem
Odors can become trapped inside the walls and flooring of a unit. If this happens, the only solution is a thorough cleaning to remove the source of the odors. Over time, bacteria can multiply, making the smells more unpleasant.
Cleaning Suggestions
The walk-in cooler or walk-in freezer should be completely emptied of its contents. Once empty, shelves and bins should be removed. A cleaner can then be made from household items. One teaspoon of baking soda mixed with one cup of white vinegar sprayed liberally over the inside surfaces should do the trick. The surfaces should be wiped immediately after being sprayed. If baking soda and white vinegar are not available, a mixture of chlorine bleach and one teaspoon of dishwashing detergent will also remove bacteria and related odors. This solution should be allowed to dry before wiping down.
Deodorizing
A medium-size bowl of charcoal briquettes placed inside a walk-in cooler or walk-in freezer for a week will effectively absorb odors. The briquettes should be replaced once during the week to keep them fresh. Products designed for removing pet odors may also be effective for removing odors.
With use, a unit may develop odors. Fast action can alleviate this issue and keep food safe.