Commercial walk-in freezers can be found in just about every commercial kitchen, restaurant and supermarket. When it comes to the food industry, they are an essential requirement. Exactly what you need to keep perishable goods and frozen foods at the right temperature (i.e. somewhere between 0°C and -40°C). But what happens if something goes wrong; perhaps you or an employee manages to get trapped in the unforgiving sub-zero conditions? It may seem unlikely, but trust us, we’ve heard plenty of horror stories. It’s incredibly easy for a trip to the walk-in fridge or freezer to escalate, quickly turning into a very dangerous and potentially life-threatening situation.
Here at MTCSS, our team boasts over 50 years’ experience in the cold storage sector and we pride ourselves on our expert knowledge and sound advice. When it comes to the safety of a walk-in freezer, we believe that prevention is definitely the best form of cure. Be precautious, follow our useful tips, and make that you and your employees avoid getting trapped in the first place!
What happens when someone gets locked in a walk-in freezer?
It could be straight out of a ’90’s soap opera, but employees getting trapped inside walk-in freezers is not as uncommon as you might think, and with temperatures below freezing, hypothermia can take just a couple of hours to set in.
Symptoms of Hypothermia
Initial symptoms of tiredness and confusion will lessen your ability to think rationally. And make it difficult find a safe way out of the situation. As mental faculties further deteriorate, so too do speech and breathing. This is shortly followed by numbness in the extremities and cardiac arrest. And as if being caught in the icy grip of death wasn’t chilling enough, for those who manage to survive, frostbite may inflict irreversible damage resulting in the loss of fingers and toes.
What causes freezer cold room doors to become stuck?
When it comes to walk-in freezer doors getting stuck, ice build-up around the door frame is the primary culprit. This should be kept in check by a door frame heater which must receive regular maintenance checks and repairs. Government guidelines state that employers hold the primary responsibility for protecting the safety and health of their workers. For example, it is considered good practice to routinely check walk in freezers throughout the day, to make sure no one has become trapped inside. Panic bars or other means of escape can be installed on the inside of the door. Some freezers may also have an axe fitted to one of the interior walls for use in emergency. If attempting to hack your way to safety, careful not to hit any copper pipes as this may release deadly Freon gas which will make short work of you in such a confined space.
Surviving a lock-in
Should you become trapped, there are steps you can take. If your walk-in freezer has curtains, take them down to fashion a suit-type garment around yourself. Further protect yourself by lining the floor beneath you with any available cardboard so you’re body isn’t in direct contact with stainless steel. A huge amount of heat is lost through your head, so fashioning a hat and mittens out of any remaining insulating materials you can find should be your next move. Once you’re all wrapped up, there’s nothing to do but keep calm and move about as much as possible to keep your heart rate up.
It is vital that you take these steps as soon as possible, as the colder you become, the harder it will be to regulate your internal body temperature.
But how can you reduce the risk of getting locked in a cold room?
Invest in the Safety of Your Walk-In Fridge or Walk-In Freezer
A walk-in fridge or walk-in freezer should be sealed as tightly as possible and its doors should be kept shut at all times. This helps to keep it in full working order, maintaining its temperature at an optimal sub-zero level, and it applies to both when the freezer is not in use and when it is occupied by an employee. With these requirements in mind, it is important that a number of precautionary steps are taken, thus ensuring the overall safety and welfare of anyone who is working inside.
Number one on your safety checklist should be to invest in a safety release latch. This is the simplest way to avoid getting trapped in a walk-in freezer – offering a quick and easy escape and a way to free yourself in a matter of seconds. A safety release latch is, essentially, a door handle that can be accessed from inside the unit. Here at MTCSS, we offer an extensive range of internal release handles for both hinged and sliding doors and we recommend taking the time to choose the right one for your walk-in freezer and fitting it before anyone accesses the room.
Secondly, we also recommend fitting your walk-in fridge or freezer door with one of our entrapment alarm systems. These alarms are a simple yet very effective way to avoid getting trapped for long periods of time. If you do manage to get stuck in the frosty conditions, you can simply pull a cord or push a button to activate the alarm and alert your fellow members of staff. Entrapment alarms often come with a battery back-up in case of a power cut or failure and, for sites with limited numbers of staff, the internal alarm can be attached to several external “remote repeaters”. They can also be set to sound (or send a text message) if there is a problem with your walk-in freezer – such as the door being left open. An incredibly handy investment, that is sure to put your mind at rest!
Useful Tips to Avoid Getting Trapped in Your Walk-In Freezer
Once you have invested in the necessary safety equipment outlined above, there are a number of rules, regulations and general practices that you and other employees should follow, thus maximising the safety of your walk-in fridge or freezer. Of course, it is important to use common sense and think about what you are doing; but here at MTCSS, we also recommend that you:
- Conduct a weekly test of all door latches and push knobs, especially the emergency internal safety release latch. If you do find any faults with these, get them fixed or repaired as quickly as possible and make sure nobody uses the walk-in freezer in the meantime.
- Maintain excellent house-keeping standards at all times. Check that all products are packed correctly, don’t over-stock shelves, and keep your walk-in freezer tidy and spillage-free. This will help to prevent any slips, trips or falls that could, potentially, lead to entrapment.
- Ensure that only employees who are authorised, and therefore sufficiently trained, have access to the walk-in fridge or freezer. They should know how to conduct a risk assessment, how to maintain their personal safety, and how to avoid getting trapped by using both the internal safety release latch and any entrapment alarms.
- Communicate with fellow colleagues. Before entering a walk-in freezer, you should notify a colleague of your intentions and how long you will be inside. If you do not return in due course, your colleague is fully aware of your whereabouts and can, therefore, check on your safety. If you do happen to get locked in, it wouldn’t be too long before you are found.
- Phone signal can sometimes be very weak inside a walk-in fridge or freezer, but if you plan to be in there for a significant length of time, it is still good practice to take your mobile with you. Emergency calls are still possible and, if you do manage to contact a co-worker, this is a very easy (and obvious!) way to avoid being trapped for long periods of time.
Getting trapped in a commercial walk-in freezer is quite a scary thought. But it is something that can be completely avoided. Just follow our useful tips and you’ll never have to worry about getting stuck in harsh sub-zero conditions again. We also stock a large range of spares & parts that can help combat getting stuck in a walk-in freezer, such as entrapment alarms – click here to see more!
If you’d like further advice and guidance regarding the safety of your walk-in fridge or walk-in freezer or you’d like to invest in specialist safety equipment, such as an internal release latch or an entrapment alarm, we’re always here to help. Contact us today on 01886 833381, email us at sales @mtcss.flywheelsites.com, or fill in an enquiry form!
ref: www.osha.gov