Commercial Ice Machine Buyer’s Guide
Commercial Ice Machine Buyer’s Guide — Choosing the Right Unit for Your Business.
Ice is one of those things you don’t think about until you run out of it. Choosing the right commercial ice machine upfront — the right type, the right output, the right ice shape for what you serve — saves a lot of headaches down the line.
First, What Type of Machine Do You Need?
Modular Ice Machines
Modular machines separate ice production from storage. The machine sits on top of a dedicated storage bin, which means you can scale storage capacity independently of production. High output, high volume — the right choice for restaurants, hotels, and event venues where demand is constant and running out isn’t an option.
Self-Contained Ice Machines
Ice maker and storage in a single unit. Compact, straightforward, and easy to position — these suit bars, cafés, and smaller restaurants where space is at a premium and demand is steady rather than relentless. A sensible first machine for most food businesses.
Undercounter Ice Machines
Fit neatly under the bar and keep ice exactly where you need it during service. No trips to a back-of-house machine, no delays. If your bar team is busy and every second counts, an undercounter unit earns its place quickly.
How Much Ice Do You Actually Need?
Output capacity — measured in kg per 24 hours — is one of the most important specs to get right, and one of the most commonly underestimated.
A useful starting point: a busy bar typically needs around 1–1.5kg of ice per customer per session. A restaurant might need 0.3–0.5kg per cover. Hotels vary widely depending on how many outlets they’re serving.
There are two things to factor in beyond raw output. First, ambient temperature — machines produce less ice in a hot kitchen than the rated 24-hour figure suggests, because that figure is typically measured at around 21°C. A kitchen running at 30°C+ in summer will see noticeably lower production. Second, peak demand — your machine needs to produce enough ice to cover your busiest period, not just your average. Running short during a Saturday night service is not a problem you want.
As a rule of thumb, buy more capacity than you think you need. It’s a much cheaper mistake than buying too little.
Storage: Don’t Overlook the Bin
Output capacity tells you how much ice a machine produces in 24 hours. Storage capacity tells you how much is available right now, when service kicks off.
For modular machines, the bin is a separate purchase — and it’s worth sizing it generously. A machine that produces 100kg a day is no use if the bin only holds 20kg and empties in the first hour of service. Match your bin capacity to your peak demand, not your average.
Self-contained and undercounter machines have built-in storage, which is one of their limitations at higher volumes. Know your peak demand before you commit.
Air Cooled or Water Cooled?
Most commercial ice machines come in air cooled or water cooled variants. Both produce the same ice — the difference is how they dissipate heat.
Air cooled machines draw in ambient air to cool the condenser and expel warm air out. They’re simpler to install, cheaper to run, and by far the most common choice. The trade-off: they need adequate ventilation around them. A machine crammed into a tight, poorly ventilated space will struggle, produce less ice than rated, and wear out faster.
Water cooled machines use a water supply to cool the condenser instead. They perform more consistently in hot or poorly ventilated environments, and don’t heat up the surrounding space. The downside is higher water consumption and increased running costs. They suit installations where ventilation is genuinely problematic and can’t easily be improved.
For most operations, air cooled is the right choice. If your machine is going into a hot, enclosed space with no good ventilation options, water cooled is worth considering.
Installation: What Do You Need in Place?
Before you order, check you have the following:
Water supply — all ice machines need a mains cold water connection. Make sure there’s a supply within reach of where the machine will sit.
Drainage — ice machines produce meltwater continuously and need a floor drain or standpipe nearby. This catches people out more often than you’d think.
Power — most self-contained and undercounter units run on a standard 13 amp plug. Larger modular machines may require a dedicated single phase supply. Check the spec before installation.
Clearance — air cooled machines need space around them to breathe. Check the manufacturer’s recommended clearances and don’t position them directly against a wall or in an enclosed cabinet.
Which Ice Shape Is Right for You?
Ice shape matters more than most people realise. The wrong shape dilutes drinks too fast, looks wrong in the glass, or simply doesn’t suit what you’re serving.
Cubes — the default for good reason. Versatile, slow-melting, and suitable for almost any drinks application. Available in full cube, half cube, and dice sizes depending on your glassware and drink style.
Crescent — a half-moon shape that balances surface area with melt rate. Fits well in most glasses, displaces liquid efficiently, and is a popular choice for busy bars.
Nugget — soft and chewable, nugget ice absorbs flavour and is particularly popular in soft drinks and blended beverages. Also the preferred choice in healthcare settings for patient hydration.
Flake — soft, mouldable ice that works well in displays, on seafood and salad bars, and in blended drinks. Doesn’t last long in a glass, but for presentation and blending it’s hard to beat.
Gourmet — large, crystal-clear cubes that melt slowly and look the part in premium serves. The right choice if presentation matters and you’re charging accordingly for drinks.
How Is the Ice Made?
Understanding the production method helps you choose a machine that suits your water quality and usage pattern.
Spray system — water sprays over a chilled evaporator to produce clear, hard cubes. Delivers high-quality ice ideal for premium drinks service, but more sensitive to water quality and limescale.
Paddle system — ice forms on the evaporator and a paddle pushes it off. Simple, durable, and more resistant to limescale than spray systems. A reliable workhorse for busy bars and pubs where the machine runs hard all day.
Auger system — used for flake and nugget ice, scraping ice from a drum continuously. Produces soft ice efficiently and suits operations with consistent demand for these ice types.
Which Machine Suits Your Operation?
Restaurants — modular machines with generous bin capacity. You need production that keeps pace with a busy service and storage that doesn’t run dry between covers.
Bars and pubs — undercounter or self-contained units for speed and convenience. Fast access during service matters more than raw output capacity.
Cafés — a compact self-contained machine covers most needs. Iced coffees, cold drinks, and the occasional smoothie don’t demand high volume, but consistency and reliability do matter.
Hotels — modular machines for the restaurant and bar, potentially supplemented by undercounter units at secondary service points. High overall demand across multiple outlets.
Healthcare — nugget or flake ice for patient care and therapeutic use. Output requirements vary, but hygiene standards and ice type are the primary considerations.
A Word on Water Quality
Hard water areas — and much of the UK qualifies — accelerate limescale build-up inside ice machines. Left unchecked, scale reduces efficiency, shortens machine life, and affects ice quality. A water filter or softener is a worthwhile investment alongside any ice machine. Ask us about filtration options when you order.
Our Range
We stock ice machines from DC, Hoshizaki, Masterfrost, and Maidaid — covering the full range from compact self-contained units for smaller operations through to high-output modular machines for hotels and restaurants.
Browse our full ice machine range here
Not sure which unit is right for you? Call us on 01379 641223 or email sales@angliacateringequipment.com
