Guidance for Commercial Refrigeration During and After Natural Disasters
How to Protect Your Walk-In Coolers and Walk-In Freezers
Natural disasters, like hurricanes, floods, or tornadoes, can be overwhelming to respond to, and present several challenges. The retail grocery industry relies on top-tier commercial refrigeration repair and replacement to keep inventory fresh when these crisis occur. Emergencies such as power outages, electrical issues, and natural disasters can lead to closures for unspecified durations of time.

Natural disasters pose significant risks not only to people but also to critical equipment supporting our food chain, such as commercial walk-in coolers and freezers. This blog focuses on essential steps to address walk-in coolers and freezers after a natural disaster.
Prioritizing customer and employee safety is crucial in any dangerous situation. If a walk-in cooler or freezer suffers damage, follow a series of steps to salvage it whenever possible. However, severe damage may make some units beyond repair. When walk-in coolers and freezers are salvageable, taking the right steps can prevent further damage and preserve these essential systems.
Walk-in Freezers Present Extra Challenges
Walk in freezers often face more challenges than walk in coolers due to their need for lower temperatures. After a power outage, the door heaters in a walk-in freezer can overheat if the freezer hasn’t reached its required low temperature. To prevent this, turn off both the refrigeration unit and door heater circuits. If the door heater circuits stay on without an active refrigeration system, the extreme heat can lead to a fire risk.
Some General Guidelines for Dealing with Power Outages
When your walk-in cooler or freezer loses electricity, immediately remove all perishable food products. If left inside, the products will spoil, and bacteria from thawing items can seep into walls and floor joints, causing further damage to the unit.
- Remove all perishable food products as soon as power is lost or as soon as possible. Product spoilage is the most obvious issue, however bacteria produced by thawing can seep into walls and floor joints, further damaging your commercial refrigeration unit.
- Drain or mop up any water on the floor and wipe down any wall with excess water. Issues with bacteria are the concern here, but also staining and oxidization can also occur.
- Air out your walk-in freezer or walk-in cooler by opening all doors to promote air flow.
- Evaluate your commercial refrigeration unit for signs of damage. Door mis-alignment, joint separation, large surface dents or tears, uneven flooring, damaged strip curtains or anything that looks visible broken. You may consider bringing in a qualified professional to inspect your cooler or freezer at a deeper level.
- Before turning your commercial refrigeration unit back on, you should measure the moisture content to ensure there is no moisture left in your cooler or freezer. Should your unit be turned on with moisture in the floor or walls can cause further damage. An extended draw-down period will also help eliminate moisture.
Some General Guidelines Without Electrical Outages
While dealing with a natural disaster that does not include an electrical outage is less intensive, there are still several steps you should follow:
- Inspect your commercial refrigeration unit to ensure it is holding temperature. If the unit is not holding correct temperature, remove all products from the walk-in and dispose of them to ensure safety. Perishable products could have warmed up to the point of growing bacteria, making them dangerous to consume.
- The second step is to evaluate and inspect the damage that has been done to the walk-in freezer. Sometimes you might need a trained professional to more closely evaluate potential damage, and plot a course forward.
- If severe exterior damage has occurred, water from the natural disaster can leak into the walk-in cooler and freezer. Furthermore, moisture can also accumulate simply from an internal temperature drop. If this happens, dry the unit out as best as possible. Do this by mopping and wiping all surfaces as well as propping open the door for improved airflow. If possible also use fans to aid in the drying process.
- Lastly we suggest examining the moisture content inside the unit. If moisture remains even after the previous step, you can use the refrigeration unit to pull the moisture and humidity out. An extended draw-down schedule will use the refrigeration unit to draw the moisture content and humidity out of the unit and create the perfect restored environment.
About International Coolers®
International Coolers® combines premium-quality walk in coolers and walk in freezers with industry expertise. We’re proud to offer custom walk in coolers, walk in freezers, combos, convenience store coolers and freezers that are built to last, designed for efficiency, and that can be shipped nationwide as well as internationally. Contact us and get a quote.
We can provide walk in freezers, walk in coolers, convenience store coolers and freezers and drive in coolers. We specialize in comprehensive project management, seamlessly handling a diverse range of commercial refrigeration endeavors like food distribution centers, pharmaceutical cold rooms, and processing facilities. Our expertise spans from initial design and meticulous planning, including architectural blueprints, to the precise engineering drawings necessary for permits, culminating in flawless installation.
International Coolers Mexico – Walk in Coolers and Walk in Freezers
