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How to Choose Commercial Refrigeration for Your Kitchen: The Complete UK Guide (2026)
Commercial refrigeration is the largest single running cost in most kitchens and the one piece of equipment that, if it fails, closes you. Choosing it well means treating the kitchen as a system rather than buying one fridge at a time: bulk storage in the back, refrigerated prep on the line, and display at the front all do different jobs and need different machines. This guide covers the whole-kitchen picture — storage versus prep versus display refrigeration, upright versus counter versus saladette, the legal 8°C fridge and -18°C freezer temperatures, gastronorm interiors, ventilated versus static cooling, climate class, and what it all costs to run at £0.27/kWh — so you can specify a coherent cold chain, not a cupboard of mismatched boxes.
- The legal temperatures: chilled food must be held at 8°C or below (most operators run 1–4°C for a safety margin) under the Food Safety (Temperature Control) Regulations 1995; frozen food at -18°C or below. These are the numbers an EHO checks and your HACCP plan records.
- Three refrigeration roles: storage (upright fridges/freezers, bulk back-of-house), prep (counter/saladette/drawer units on the line), and display (multideck, deli and cake cabinets front-of-house). Each needs a different machine — do not use a storage fridge for prep.
- Ventilated (fan-assisted) vs static cooling: ventilated units hold an even temperature under heavy door use and recover fast — best for busy kitchens. Static units are cheaper and quieter but recover slowly and vary top-to-bottom — better for low-traffic storage.
- GN (gastronorm) interiors are the standard: prep counters and many storage fridges are built around the 530 × 325mm GN module so trays cross-compatibly move between fridge, prep counter and oven. Spec GN-compatible interiors for a joined-up kitchen.
- Climate class matters in a hot kitchen: a unit’s climate class states the ambient temperature it is rated to perform at. A kitchen that hits 32°C+ near the ovens needs a unit rated for that ambient, or it will run flat out and fail early.
- Energy is the dominant lifetime cost: a busy upright fridge can use well over 1,000 kWh a year — several hundred pounds at £0.27/kWh — so the efficiency rating and a clean condenser matter more to your bill than the purchase price.
- Capacity is measured in litres and in GN pans: a 650-litre single-door upright is a typical one-section storage fridge; a 1,300-litre double-door doubles it at the lowest cost per litre. Spec to peak stock, not average.
- Refrigerant and servicing carry duties: commercial refrigeration falls under the F-Gas Regulation for servicing and leak checks — use certified engineers and keep records. Warranty and servicing support matter as much as the box itself.
Refrigeration is where kitchens quietly lose money and, occasionally, lose a service. Buy a storage fridge and use it as a prep station and it never holds temperature with the door open all shift; buy a static unit for a hammering lunch line and it lags behind every door opening; ignore climate class and the machine runs itself to death next to the range. The fix is to plan the cold chain as a whole — the right machine for each of the three roles, at the right temperature, cooling, capacity and efficiency — and to buy from a supplier who backs it with servicing and warranty.
This guide is for the trade buyer specifying refrigeration for a working commercial kitchen — restaurant, pub, hotel or café owner, kitchen manager, care-home or contract caterer, dark-kitchen operator, or catering procurement. Domestic fridges and one-off hire are out of scope. Browse the Craven Cooling commercial refrigeration range when you are ready.
Table of Contents
Legal maximum for chilled and frozen food under UK temperature-control law
Storage, prep and display — each needs a different type of unit
Non-domestic electricity rate that makes efficiency the dominant cost
Chilled food must be held at 8°C or below by law, but most operators run fridges at 1–4°C to give a working margin — a fridge that drifts to 8°C on a hot day is then still legal, not over the line. Freezers hold -18°C or below. A unit that cannot maintain these temperatures under real door traffic on a hot kitchen day is not a bargain at any price: it puts your stock, your HACCP records and your EHO rating at risk. Spec the cooling type and climate class to hold temperature in your actual kitchen, not in a showroom.
Practical fridge running range for a safe margin below the 8°C limit
Decision 1: Storage vs Prep vs Display
The first and most important decision is which of the three refrigeration roles you are buying for. Using the wrong type for a job is the most common and most expensive refrigeration mistake.
| Role | Typical units | Where it lives | Job |
|---|---|---|---|
| Storage | Upright fridges & freezers (single/double door) | Back of house | Bulk hold of stock and deliveries, doors mostly closed |
| Prep | Counter, saladette, drawer & pizza prep fridges | On the line | Cold ingredients to hand during service, worktop over the top |
| Display | Multideck, deli, cake & serve-over cabinets | Front of house | Show and sell chilled product to customers |
Upright Storage Fridge
Bulk back-of-house
- Single (~650L) or double (~1,300L) door
- GN-compatible shelving
- Deliveries and bulk stock
- Doors closed most of the day
- Lowest cost per litre in double-door
Counter / Saladette
On the prep line
- Worktop or GN wells over the top
- Cold ingredients at hand height
- Drawer or door configurations
- Built to run with lids opening
- Pizza and salad line variants
Display Cabinet
Front-of-house sell
- Multideck, deli, cake, serve-over
- Glass and lighting to merchandise
- Customer-facing chilled sales
- Higher heat load — spec carefully
- Holds 8°C while on show
Specialist Storage
Meat, fish & blast
- Meat ageing and fish fridges
- Controlled humidity for meat
- Blast chillers/freezers for cooling
- Purpose-built temperature control
- Where general storage won’t do
Buying a cheap upright storage fridge and using it as a prep station is the classic false economy. With the door open through every service, a storage fridge cannot hold 8°C, so ingredients drift warm, stock is binned, and the compressor runs itself to death trying to recover. A purpose-built prep counter or saladette — designed to run with the lid opening constantly and cold ingredients in GN wells at hand height — costs more upfront but holds temperature, protects the stock, and lasts. Spec each machine for its role, not for its price tag.
Decision 2: Temperature, Cooling & Climate Class
Three technical factors decide whether a unit actually holds temperature in your kitchen: the target temperature, the cooling method, and the climate class it is rated for.
| Factor | Ventilated (fan-assisted) | Static |
|---|---|---|
| Temperature evenness | ✓ Even top-to-bottom | Varies with height |
| Recovery after door opening | ✓ Fast | Slow |
| Best for | Busy kitchens, heavy door use | Low-traffic storage, drinks |
| Running noise | Slightly higher (fan) | ✓ Quieter |
| Purchase cost | Higher | ✓ Lower |
| Drying effect on unwrapped food | Can dry — keep food covered | ✓ Gentler |
For a busy commercial kitchen with constant door traffic, ventilated (fan-assisted) cooling is almost always the right call: it holds an even temperature top to bottom and recovers quickly after every door opening, which is exactly what a hammering service demands. Static cooling is cheaper, quieter and gentler on unwrapped food, which makes it a reasonable choice for low-traffic storage or a bottle cooler, but it lags behind heavy use. Whichever you choose, keep food covered in a ventilated unit to stop the fan drying it.
The area next to the range and ovens can sit well above normal room temperature during service. A fridge rated only for a cool ambient, placed there, will run its compressor continuously to try to hold 4°C, drive up your energy bill, and wear out years early. Either give the unit a cooler position with clear airflow around the condenser, or spec one with a climate class rated for a hot kitchen. Position and climate class together decide whether a fridge holds temperature or fights a losing battle all shift.
Decision 3: Capacity, GN Interiors & Format
Size the refrigeration to your peak stock and delivery cycle, and spec gastronorm interiors so trays move seamlessly around the kitchen.
Plan capacity around your fullest fridge — the day after a big delivery, or the prep for a busy weekend — not a quiet Tuesday. A single-door upright at ~650 litres suits a small kitchen; a double-door at ~1,300 litres doubles the space at the lowest cost per litre for a busy operation.
Gastronorm (the 530 × 325mm module and its fractions) is the standard that lets a tray move from storage fridge to prep counter to oven without repacking. Fridges and counters built around GN shelving and wells join your kitchen into one system rather than a set of incompatible boxes.
Upright for bulk storage, counter or saladette for the prep line, drawer units where a chef needs cold ingredients under the pass, display cabinets front of house. The format follows the role — decide the role first, then pick the format that fits the footprint.
Fridge at 1–4°C and freezer at -18°C or below do different jobs — do not over-buy one and starve the other. A kitchen that freezes little needs mostly fridge capacity; a batch-cook or dark kitchen needs far more freezer. Split the capacity to how you actually store.
Every unit needs clear space around its condenser and vents to shed heat. Boxed into a tight recess, even a well-rated fridge overheats and struggles. Plan the position with airflow in mind, and keep the condenser clean — a blocked condenser is the most common cause of a fridge losing temperature.
Meat ageing needs controlled humidity a general fridge can’t provide; fish needs its own cold, drained storage; a blast chiller cools cooked food through the danger zone fast for safe storage. Where a job is specialised, buy the specialist unit rather than compromising the whole cold chain.
Decision 4: Energy & Running Cost
Refrigeration runs 24 hours a day, every day, so its energy use — not its purchase price — is the number that dominates the lifetime cost.
The lesson is that a cheaper, less efficient fridge is rarely cheaper overall. Over a seven-to-ten-year life, electricity commonly costs more than the machine did, so a better efficiency rating and disciplined condenser cleaning save more than any purchase-price saving. A blocked condenser alone can add 20–30% to the bill and shorten the machine’s life. Position units away from heat sources, keep the condenser clean, keep doors closed and seals sound, and the running cost stays where it should.
£1,000–£1,300
+ VAT — ~650L storage fridge or freezer
£1,800–£2,000
+ VAT — ~1,300L, lowest cost per litre
£1,200–£2,000
+ VAT — GN prep line refrigeration
£1,800–£2,500+
+ VAT — deli, multideck, meat ageing
Commercial Refrigeration We Stock
A representative selection of the Polar U-Series refrigeration Craven Cooling stocks — storage uprights, a GN prep counter and a meat ager covering the storage and prep roles. Stocked July 2026. Prices + VAT.
+ VAT — Craven Cooling trade price
The storage workhorse
- 650-litre single-door capacity
- Bulk back-of-house storage
- GN-compatible shelving
- Holds 1–4°C for a legal margin
- Polar U-Series build
The default storage fridge for a small-to-mid kitchen — 650 litres of GN-compatible bulk storage that holds a working 1–4°C behind a mostly-closed door. Start the cold chain here.
+ VAT — Craven Cooling trade price
Lowest cost per litre
- 1,300-litre double-door capacity
- Doubles storage at low cost per litre
- GN-compatible shelving
- Busy kitchens and deliveries
- Holds 1–4°C under load
Twice the storage of the single-door at the lowest cost per litre — the right bulk fridge for a busy kitchen with big deliveries and weekend prep to hold. Ventilated cooling recovers fast under door traffic.
+ VAT — Craven Cooling trade price
-18°C storage
- 650-litre single-door freezer
- Holds -18°C or below by law
- GN-compatible interior
- Frozen bulk stock and batch cook
- Matches the UA050 fridge footprint
The freezer partner to the single-door fridge — 650 litres holding -18°C or below for frozen bulk stock and batch-cooked meals. Pair with the UA050 for a balanced storage bank.
+ VAT — Craven Cooling trade price
High-volume freezing
- 1,300-litre double-door freezer
- Holds -18°C or below
- GN-compatible interior
- Batch-cook and dark-kitchen scale
- Lowest cost per litre frozen
The high-volume freezer for batch-cook operations and dark kitchens — 1,300 litres at -18°C, the freezer equivalent of the double-door fridge and the lowest cost per litre of frozen storage.
+ VAT — Craven Cooling trade price
Refrigeration on the line
- Four-drawer gastronorm counter
- Cold ingredients under the pass
- Worktop over the top
- GN drawer layout
- Built for prep-line door traffic
Refrigeration on the prep line — a four-drawer GN counter that puts cold ingredients at hand height under a worktop, built to run with drawers opening through service rather than as sealed bulk storage.
+ VAT — Craven Cooling trade price
Specialist storage
- Controlled meat-ageing environment
- Humidity and temperature control
- Dry-aged beef and charcuterie
- Where a general fridge won’t do
- Front-of-house or kitchen display
The specialist unit for dry-ageing — controlled humidity and temperature that a general storage fridge cannot provide, for steakhouses and butchery-led kitchens that age their own beef.
Beyond the units above, Craven Cooling stocks or sources the full refrigeration range — storage fridges and freezers, refrigerated prep counters, saladettes and pizza prep, and multideck, deli and cake display cabinets. Tell us your covers, kitchen layout, delivery cycle and hottest positions and we’ll spec a coherent storage-plus-prep-plus-display cold chain. Call 01792 732702 or email [email protected], and see our servicing for F-Gas leak checks and planned maintenance.
Refrigeration Buying Checklist
Run this before you place the order.
-
Role decided first — storage, prep or display
Never use a storage fridge as a prep station. Buy each machine for its role and the cold chain works. -
Temperatures set for a legal margin
Fridges at 1–4°C (below the 8°C limit), freezers at -18°C or below. These are what an EHO checks and your HACCP records log. -
Ventilated cooling for busy, static for low-traffic
Fan-assisted holds temperature and recovers fast under heavy door use; static is cheaper and quieter for low-traffic storage. -
Climate class matched to the hottest position
A unit rated only for a cool ambient will run flat out next to the ovens. Match climate class to where it actually stands. -
GN-compatible interiors specified
Gastronorm shelving and wells let trays move fridge-to-counter-to-oven, joining the kitchen into one system. -
Capacity sized to peak stock, fridge and freezer balanced
Plan around the fullest day, not the average, and split fridge/freezer capacity to how you actually store. -
Airflow around the condenser planned
Clear space around vents and condenser to shed heat; a boxed-in or blocked condenser loses temperature and wastes energy. -
Efficiency, warranty and F-Gas servicing considered
Energy dominates lifetime cost; confirm the efficiency rating, warranty and access to F-Gas-certified servicing.
Refrigeration Units We Stock or Source
| Product | Role | Capacity | Trade price + VAT |
|---|---|---|---|
| Polar U-Series Single Door Fridge 650L UA050 ★ | Storage fridge | 650L | £1,099.88 |
| Polar U-Series Double Door Fridge 1300L UA052 ★ | Storage fridge | 1,300L | £1,829.51 |
| Polar U-Series Single Door Freezer 650L UA051 ★ | Storage freezer | 650L | £1,187.99 |
| Polar U-Series Double Door Freezer 1300L UA053 ★ | Storage freezer | 1,300L | £1,979.99 |
| Polar U-Series Four Drawer GN Counter Fridge UA100 ★ | Prep counter | 4 GN drawers | £1,199.87 |
| Polar U-Series Meat Ager UA038 ★ | Specialist storage | Meat ageing | £1,799.81 |
| Saladettes, pizza prep, multideck, deli & cake display, blast chillers | Prep / display | Various | Stocked or sourced to spec |
★ = Stocked at Craven Cooling. Prices July 2026, + VAT.
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Choosing commercial refrigeration means planning the whole cold chain, not buying one fridge at a time. There are three roles: storage (upright fridges and freezers, bulk back-of-house), prep (counter, saladette and drawer units on the line), and display (multideck, deli and cake cabinets front-of-house) — each needs a different machine, and using a storage fridge as a prep station is the classic, expensive mistake. By law, chilled food is held at 8°C or below (run 1–4°C for margin) and frozen at -18°C or below. Ventilated (fan-assisted) cooling holds an even temperature and recovers fast under heavy door use, so it suits busy kitchens; static is cheaper and quieter for low-traffic storage. Match the climate class to your hottest position — an under-rated unit next to the ovens runs flat out and fails early. Spec GN-compatible interiors so trays move around the kitchen, size storage to peak stock with fridge and freezer balanced, and keep airflow clear around the condenser. Energy is the dominant lifetime cost at £0.27/kWh — a busy upright can cost more to run over its life than to buy — so efficiency and clean coils matter most. Craven Cooling stocks the Polar U-Series (single-door fridge £1,099.88, double-door £1,829.51, single-door freezer £1,187.99, double-door freezer £1,979.99, four-drawer GN counter £1,199.87, meat ager £1,799.81, all + VAT) and sources saladettes, display and blast chillers to spec, with F-Gas-certified servicing. Call 01792 732702 or visit the Swansea showroom.
Frequently Asked Questions
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Related Buying Guides
Focusing on a single storage fridge? Read how to choose a commercial fridge for your kitchen. Keeping the units running is covered in maintaining commercial refrigeration — seals, servicing and F-Gas rules. Need more cold storage than uprights provide? See the modular cold room installation and sizing guide. And for the GN trays that move through it all, read how to choose the right gastronorm size.
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