Cold room monitoring: continuous readings and instant alerts

You monitor a cold storage room by measuring the temperature continuously with a sensor that alerts you instantly when it drifts, instead of checking it by hand a couple of times a day, because a cold room usually holds far more stock at once than a single fridge.

Why is a cold room harder to monitor than a regular fridge?

A cold room gets opened more often and for longer, for example while loading and unloading bulk stock, and those swings make it harder to keep the temperature stable. You also notice a problem less quickly: a small fridge gets opened constantly, while a cold room can stay closed and unchecked for part of the day. If something does go wrong there, the damage is bigger too, simply because there is more stock inside.

What temperature should a cold room run at?

The standard depends on what is stored:

• General purpose cold room: 7 degrees or below.
• Cold room specifically for meat and fish: often kept closer to 0 to 4 degrees.
• Freezer room: minus 18 degrees or colder.

How does an alarm for a cold room actually work?

A sensor in the cold room measures the temperature continuously and compares it against the set standard. On a deviation, a managed system like Coolwatcher sends a WhatsApp alert to whoever is responsible straight away, with an actual phone call if that alert goes unacknowledged or happens during a closed night or weekend. That works the same way as a temperature alarm for any fridge, only the impact of a missed alert is bigger in a cold room because of the larger stock involved.

What does a cold room failure cost?

A weekend failure in a regular fridge can already cost 2,000 to 8,000 euros in lost stock. For a cold room that figure is often higher, simply because there is more product inside and it often represents several days or a full week of supply. That risk grows fastest exactly during a weekend or overnight, when nobody is around.

What are the record keeping requirements for a cold room?

A cold room follows the same record keeping requirements as any other fridge: a demonstrable, unbroken measurement kept for at least two years. That is set out in the HACCP requirements for safe practice in a commercial kitchen set by the Dutch food safety authority. During an inspection, a large cold room does not count more heavily than a small fridge, but the risk of missing records is bigger, since more stock is on the line if something goes wrong.

What should you look for when choosing monitoring for a cold room?

Pick a temperature sensor built to handle the larger space and humidity of a cold room, with a connection that keeps working if the wifi goes down. NB IoT suits this well since it runs on the mobile network, independent of your venue's wifi. Also check whether the system logs automatically, so monitoring fills your HACCP records at the same time.

How do you combine cold room monitoring with the rest of your HACCP records?

A cold room belongs in your temperature registration system just like any other fridge, not as a separate solution on the side. Coolwatcher logs every cold room and fridge independently in the same app, so you see which space has a problem in one overview instead of switching between different systems.

Frequently asked questions

Does a cold room need a separate sensor in every corner?

A small cold room usually needs just one sensor, as long as it is not placed right by the door or the fan, where temperature swings the most. A large cold room with multiple zones can benefit from a second sensor to catch differences between front and back.

How fast do you need to respond to a cold room alarm?

As fast as possible, since the volume of stock in a cold room makes damage add up quickly during a failure. A system that automatically escalates to a phone call when a WhatsApp alert goes unacknowledged prevents an alarm from sitting there unnoticed.

Is a cold room alarm required for HACCP compliance?

An alarm itself is not required, but logging the temperature is. An alarm makes that logging far more reliable in practice, since it catches a deviation in time rather than only at the next manual check.

Want your cold room monitored continuously instead of checked by hand a few times a day? Coolwatcher offers that from 50 euros a month, including a free demo. Take a look at the Coolwatcher product page as a starting point.