97% of commercial refrigerators sold in 2018-19 have an energy class A + or A ++. And for good reason – manufacturers can no longer offer Class A devices or, less. It is also surprising that energy labels continue to display a scale from A +++ to D. According to the World Environment, and Energy Management, commercial refrigerators and, freezers classified A +++ consume 70% less electricity than appliances classified A, but they are still very expensive. The American refrigerator is the type of refrigerator that consumes the most electricity – its annual consumption ranges from 300 to 650 kWh. It’s almost 2 times more than a conventional refrigerator.
Differences between types of cold
Different technologies make it possible to ensure the refrigeration of food. They have an impact on the internal temperature of the device and therefore on the storage of food.
Air circulates freely in the device. The internal temperature is not homogeneous – the top of the unit is warmer than the bottom, since the hot air is lighter (unless the top of the device contains a freezer). The most fragile foods should be stored in the coldest area.
Air stirred (or “dynamic”)
A fan blows the cold air and facilitates its diffusion throughout the refrigerator, which ensures a nearly uniform temperature at each level and accelerates the return to the setting temperature after opening the door.
Ventilated cold (no frost)
Ventilated cold (also called “no frost”) is the most advanced system. A fan propels non-humid cold air evenly throughout the refrigerator, which prevents frost formation. The “low frost” or “smart frost” systems offered by some brands promise to reduce frost, but do not eliminate it.
The freezing performance of the devices is indicated by the number of stars they display. Be careful, this information should not be confused with the energy label! One star device – The freezer can reach -6 degree C. This is enough to make ice cubes and keep frozen 2 or 3 days. Two start device- The device can go down to -12 degree C. Frozen products can be kept for 3 weeks. Three star device – The device can maintain a temperature of -18 degree C and, go down to -26 degree C. It can therefore freeze food. The last star means that the storage temperature below -18 degree C is maintained over time. You can visit https://www.phirella.com/products/ for more details regarding commercial freezer products.
The different options offered by the manufacturers
Refrigerators are evolving and manufacturers are competing ingeniously for new options, some of which are frankly not essential. In any case, if possible, prefer an automatic defrost model with security glass shelves for better container stability and easier maintenance. Finally, depending on the location, make sure that the door is reversible.
Super freezing or “super freeze”
The super freezing option can quickly cool a large amount of food. This option is often superfluous: it is very rare daily to insert a large volume of food at room temperature in the freezer (purchased foods are usually already frozen). In addition, the use of this option leads to over-consumption of electricity.
Super-refrigeration or “super cool”
Operating on the same principle as the “super-freezing” option, its counterpart, super-refrigeration, reduces the temperature of the refrigerator for 6 to 12 hours. This is not meant to freeze food, but to cool it quickly. Useful, for example, to refresh appetizers or a bottle before a party.
Mechanical or digital thermostat
The digital thermostat is often easier to adjust than a simple mechanical knob to turn. The mechanical thermostat is sometimes located inside the unit. In this case, it takes up space.
The door alarm
It will beep when the door is open or not properly closed for a specified time. Useful for head-in-the-air or families with children.
On some appliances, this feature turns off the refrigerator while keeping the freezer working to keep frozen food. Some appliances also allow the refrigeration section to be set to a temperature of 14 degree (sufficient to hold foods such as mustard or, eggs) without affecting the temperature of the freezer. There are various options, and models available for commercial freezers. At first you should consult with the expert, and let them survey your place. They will decide the best.