Buying a commercial freezer:
what should you look for?
A freezer is rarely bought right twice. Most poor purchases come not from the wrong brand, but from choosing capacity in litres and overlooking the climate class. This guide walks through the five points that make the difference in practice.
By Jos Menting, JMGT Commercial Kitchen Equipment · Hoshizaki dealer with in-house service · Published 15 September 2026
In short
Choose a commercial freezer on usable GN capacity, not gross litres. Then look at the climate class: in a hot kitchen that is exactly where cheap cabinets fail. Go for R290 refrigerant, forced-air cooling and automatic defrost, and allow the space the machine compartment needs to draw air. For most kitchens that comes down to a GN 2/1 cabinet in climate class 5, single or double door.
First the question: do you actually need an upright freezer?
An upright freezer is storage. It holds volume on a small footprint. If what you mainly need is freezing capacity at the workstation during service, a freezer counter often makes more sense: less volume, but a worktop and direct access. See freezer counters
And if you have to bring large quantities down in temperature before freezing, a blast chiller belongs in the plan; putting warm product into a freezer is the fastest way to raise the temperature of your whole stock. See blast chillers
1. Capacity: count GN positions, not litres
Litres say little. What counts is how many GN 2/1 pans or shelves you can fit and how many of those you can genuinely fill without blocking airflow. With forced-air cooling the air has to pass the product; pack the cabinet solid and the cold air never reaches the rear pans, so the temperature climbs. Always allow ten to fifteen per cent of margin on paper.
| Type of venue | Indicative freezer volume | Usual configuration |
|---|---|---|
| Lunchroom or small cafe | up to around 400 litres | Single-door GN 2/1 or undercounter |
| Restaurant, 60 to 120 covers | around 600 to 700 litres | Single-door GN 2/1, climate class 5 |
| Busy restaurant or hotel kitchen | around 1,200 to 1,400 litres | Double-door GN 2/1 |
| Catering or production kitchen | multiple cabinets or a freezer room | Double-door plus freezer counter |
| Care home with HACCP logging | depends on meal service | Series with temperature logging |
Indicative figures based on common kitchen layouts. Your ordering rhythm and the amount of prepped product weigh more than cover counts alone.
2. Climate class: where cabinets fail in hot kitchens
The climate class tells you the ambient temperature and humidity the cabinet was tested at. Class 3 assumes around 25 degrees. That is fine in a separate store room, but behind a cooking line or in a kitchen without good extraction the temperature climbs easily to 30 to 35 degrees in summer. A cabinet chosen too lightly then runs continuously: higher electricity use, more wear on the compressor, and in July a freezer that no longer holds core temperature.
We therefore recommend a higher climate class as standard. Hoshizaki Premier freezers are built to climate class 5, and the Snowflake series is specifically designed as a tropicalised build for environments up to 40 degrees. That is not a luxury: it is the difference between a cabinet that gets through August and a cabinet you call about in August.
3. Refrigerant and energy use
New commercial refrigeration now runs almost exclusively on R290, or propane. It has a very low global warming potential, which makes it future-proof under European F-gas rules, while older refrigerants such as R404A are being phased out. Buy a cabinet on an outdated refrigerant today and you are buying a service problem for five years from now.
On consumption: a freezer runs 24 hours a day, so the gap between an efficient and a mediocre cabinet adds up substantially over a year. Always ask for the stated annual consumption and set it beside the purchase price before deciding on price.
4. Build: the details that shape daily use
These are the points we work through on every quote, because they decide how the cabinet holds up over ten years:
Forced-air cooling
Delivers an even temperature all the way to the back and recovers faster after the door opens. For freezing in a professional kitchen it is almost always the right choice.
Automatic defrost and evaporation
Without automatic defrost, ice builds on the evaporator and capacity drops. Evaporating the defrost water saves installing a drain.
AISI 304 inside and out
Stainless steel inside and out is the norm in a kitchen cleaned daily. Look for rounded internal corners too.
Door seal and hinges
The first component to wear and the quietest energy waster. Check that seals are separately available and whether the door swing can be reversed.
Room for the machine compartment
The condenser has to draw air. Slotting a cabinet tightly into an alcove costs capacity and service life. Allow free space on the intake side.
Castors or feet
Castors let you clean underneath, which helps at a hygiene inspection. In heavy installations, adjustable feet are more stable.
5. Which Hoshizaki series suits your kitchen?
Hoshizaki runs four refrigeration series, each built for a different kind of use. In practice the choice between those series matters more than the choice between brands.
| Series | Positioning | Strongest use case |
|---|---|---|
| Premier | Premium flagship series, climate class 5, GN 2/1 | Restaurants and hotels planning years ahead |
| Advance | Robust, built around HACCP and logging | Care, production kitchens and institutions |
| Snowflake | Tropicalised build for up to 40 degrees | Hot kitchens and placement beside the cooking line |
| Compact | Undercounter and smaller formats | Bars, lunchrooms and tight kitchens |
The full explanation per series is in our series guide. Which Hoshizaki cooling series? Hoshizaki vs. Gram
From the field
The freezer fault we are called out to most often is not a fault. It is a cabinet standing too close to a wall or next to a range, with a condenser packed with dust and grease. At a restaurant near Zutphen the freezer was built into an alcove of exactly cabinet width; the owner suspected a failed compressor because it would not get below minus eighteen in summer. After pulling it clear and cleaning the condenser it ran normally again and consumption dropped visibly. That is exactly why we ask, before delivery, where the cabinet will stand and what stands next to it. A spec sheet knows nothing about the wall you push it against.
Frequently asked questions
What freezer capacity do I need?
As a rule of thumb, allow roughly 100 to 150 litres of usable freezer volume per hundred covers per day, depending on how much you prep and how often you order. Note that usable is not the same as gross. Shelves, air ducts and clearance around the evaporator quickly take ten to fifteen per cent. So count GN 2/1 positions rather than litres alone.
What does climate class mean on a freezer?
The climate class states the ambient temperature and humidity at which the cabinet still holds its temperature. Climate class 3 is tested to around 25 degrees. In a hot kitchen it easily reaches 30 to 35 degrees behind the cooking line. A cabinet chosen too lightly will then run continuously, use far more electricity and fail to hold core temperature in summer. Hoshizaki Premier freezers are built to climate class 5, and the Snowflake series is specifically designed for environments up to 40 degrees.
Is R290 refrigerant safe in a kitchen?
Yes. R290 is propane, used in commercial refrigeration in small, hermetically sealed charges. It has a very low global warming potential, which makes it future-proof under European F-gas rules. The practical points are placement and service: allow enough air supply around the machine compartment and have work carried out by a technician qualified to handle flammable refrigerants.
What is the difference between an upright freezer and a freezer counter?
An upright freezer is storage: high volume on a small footprint, usually with GN 2/1 shelves. A freezer counter puts freezing capacity at working height with a usable worktop above it, but with less volume. Most kitchens combine the two: the cabinet for stock, the counter for what you need during service.
How long does a commercial freezer last?
With normal use and annual servicing, ten to fifteen years is typical. What shortens service life in practice is almost always the same trio: a fouled condenser, a worn door seal and a placement that is too warm. All three are avoided with one maintenance visit a year.
Next step
Send us your cover numbers, your ordering rhythm and a photo of where the cabinet has to go. We will work out the capacity you need and recommend the right climate class.