How to Choose the Right Commercial Ice Machine for Your Bar or Restaurant

Ice is one of those back-of-house essentials that most operators don’t think about until they run out of it mid-service. Then it becomes the only thing they can think about.

A commercial ice machine is a deceptively important piece of equipment. The wrong unit, wrong type, wrong capacity, wrong placement, creates ongoing operational problems: insufficient ice during peak periods, ice that melts too fast, a machine that can’t cope with Melbourne’s summer ambient temperatures, or a unit positioned so poorly that restocking the bar takes three times as long as it should.

This guide covers everything you need to know to choose the right commercial ice machine for your bar, restaurant, café, or hospitality venue, from ice type and daily capacity to placement, maintenance, and storage sizing.

MRCE stocks a range of commercial ice machines suitable for bars, cafes, restaurants, hotels, and hospitality venues of all sizes. Our team can help you select and size the right unit for your operation, call (03) 9794 8627 or visit our showroom at 15 Station Street, Dandenong.

Ice Type: Not All Commercial Ice Is the Same

The first decision in commercial ice machine selection is ice type, and it matters more than most buyers realise. Different operations need different ice for different reasons.

Cube ice

The most common type in commercial foodservice. Dense, slow-melting, and visually clear. Cube ice is ideal for drinks service, it chills efficiently without over-diluting and looks professional in glassware. Available in full cube (large, very slow melt) and half cube (faster chill, more surface area) configurations. Half cube is the default choice for most bars and restaurants.

Nugget / chewable ice

Soft, compacted, chewable ice, the kind associated with fast food chains and healthcare environments. Nugget ice is highly popular in self-serve beverage settings, smoothie operations, and healthcare catering. It absorbs beverage flavour (which customers often love), chills quickly, and is gentle enough to chew safely. Melts faster than cube ice, which is worth noting for still beverage service.

Flake / shaved ice

Very fine ice used primarily for food display, fish display counters, seafood service, salad bars, and chilled food presentation. Flake ice conforms to irregular surfaces, providing even cooling without damaging delicate products. Not suitable for drinks service, it melts too rapidly and creates dilution problems.

Crescent / bullet ice

Crescent-shaped or bullet-shaped ice is a common cube variation produced by many underbench commercial ice makers. It chills efficiently, displaces well in glassware, and is produced by a simple, reliable mechanism that makes underbench crescent ice makers one of the most cost-effective and durable options for moderate-volume bars and cafés.

Daily Ice Production Capacity: How to Size Correctly

This is where most operators make the most expensive mistake: guessing their ice requirement rather than calculating it. An undersized ice machine runs flat out, can’t keep up at peak, and burns out its compressor prematurely. An oversized machine wastes capital and energy.

Here’s how to calculate your requirement correctly:

• Drinks service: a typical drink uses 200–300g of ice. Multiply your peak hourly drink by 250g to get kg per hour. For a bar serving 100 drinks per peak hour: 100 × 250g = 25 kg/hour required production.
• Food display (seafood, salad bars): flake ice for display typically requires 1–2 kg of ice per kilogram of product displayed, plus replenishment for melt. Calculate based on your display volume.
• Add a buffer for ambient conditions: ice machines produce less ice as ambient temperature and water temperature increase. In Melbourne summer, a machine rated at 30 kg/day at 21°C ambient may produce only 22–25 kg at 35°C ambient. Always add a 25–30% buffer to your calculated requirement.
• Factor in storage capacity: daily production capacity and storage bin capacity are separate numbers. Your ice machine produces X kg per day; your bin holds Y kg. If your peak demand exceeds bin capacity within a service, you need either a larger bin or higher daily production.

Simple rule of thumb: for a bar or restaurant, calculate 1–1.5 kg of ice per cover served over your peak service. A 100-cover lunch service requires approximately 100–150 kg of ice available. Ensure your daily production and storage combine to meet this figure, accounting for the ice already on hand from overnight production

Commercial Ice Machine Types by Footprint

Underbench / undercounter ice makers

The workhorse of commercial bar and café operations. Underbench ice makers sit under the bar or prep bench, keeping the production and storage point exactly where the ice is used, no carrying, no cross-kitchen trips, no ice bin on the floor. Most produce crescent or cube ice, with daily production capacities ranging from 25 kg to 120 kg depending on the model.

Key considerations: ambient temperature rating (critical for Melbourne summers), water supply and drainage at the installation point, and the clearance space required around the unit for airflow and service access.

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Modular ice machines with separate bin

For higher-volume operations, modular ice machines produce ice in a head unit that sits on top of a separate storage bin. This configuration allows the ice maker head to be paired with a bin sized to your specific storage requirement independently of production capacity. Common in large hotels, event venues, and high-volume bars.

Countertop / self-contained small ice makers

Compact self-contained units for lower-volume applications small cafés, offices, break rooms, and supplementary ice supply. Lower daily production (typically 10–25 kg), small footprint, and simple installation. Not suitable as a primary ice source for a busy bar or restaurant service.

Air-Cooled vs. Water-Cooled: Which Is Right for Your Kitchen?

Commercial ice machines come in air-cooled and water-cooled condenser configurations. For most Melbourne operations, the choice is clear:

• Air-cooled (recommended for most operations): the condenser dissipates heat into the surrounding air. Requires adequate ventilation around the unit typically 15cm clearance on sides and top. Lower operating cost, simpler installation, no water-cooled system infrastructure required. The standard choice for underbench installations in cafes, bars, and restaurants.
• Water-cooled (specialist applications): the condenser is cooled by water rather than air. Can be installed in enclosed spaces without ventilation requirements, and produces slightly more ice at high ambient temperatures. However, water-cooled units consume significantly more water and are more complex and costly to install and maintain. Only worth considering where ventilation is genuinely impossible.

Critical Features to Look For

• Ambient temperature rating: for Melbourne commercial kitchens, look for units rated to at least 38°C ambient. A unit rated to 32°C will underperform or fail during summer heatwaves.
• Self-cleaning cycle: commercial ice machines require regular cleaning and sanitising. A self-cleaning cycle makes this maintenance task manageable rather than a reason to skip it.
• Water filter compatibility: ice quality is only as good as the water going in. A commercial ice machine should be installed with an in-line water filter — this improves ice clarity, taste, and machine longevity by reducing scale and sediment.
• Easy access for maintenance: the evaporator, water distribution system, and condenser need to be accessible for routine cleaning and periodic service. Check access before installation, particularly for underbench units.
• NSF certification: food-grade certification is important for any piece of equipment that produces food or ice for consumption. NSF certification confirms the unit meets hygiene and material safety standards.

Ice Machine by Operation Type

Busy bar or cocktail bar

Half-cube or crescent underbench ice maker with a large storage bin. Daily production of 60–120 kg depending on cover count. Prioritise ambient temperature rating and rapid production restart after bin depletion.

Café with cold beverages

A moderate-capacity underbench crescent or nugget ice maker (25–60 kg/day). Nugget ice is increasingly popular for iced coffees and cold brew service. Pair with a glass rinser at the coffee station.

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Restaurant with full table service

Moderate underbench unit (40–80 kg/day) serving the bar station. Separate consideration for the kitchen if ice is used in food prep or display.

Hotel or event venue

Modular ice machine with separate large-capacity storage bin. Daily production of 100 kg+ for large hotels. Consider multiple units in different service areas rather than one central unit requiring transport.

Seafood restaurant or fish market

Flake ice machine for display and storage, separate from any cube or crescent unit serving drinks. Flake ice production for display purposes requires much higher daily output than drinks service, size for your display volume, not your drinks covers.

Placement, Installation, and Maintenance: What Operators Miss

• Position the ice machine where the ice is used: the further the ice has to travel from machine to point of use, the more inefficiency you create. Underbench installation directly at the bar is the gold standard.
• Water supply and drainage: ice machines need a cold water inlet and a drain. Confirm both are accessible at your intended installation point before purchasing the machine.
• Ventilation clearance: air-cooled units need clearance on all sides. An ice machine jammed into a tight underbench alcove with no airflow will overheat and underperform especially in summer.
• Regular cleaning schedule: ice machines are one of the most commonly neglected pieces of equipment in commercial kitchens. A dirty ice machine produces cloudy, off-tasting ice and is a significant hygiene risk. Monthly cleaning and quarterly deep-clean should be standard practice.
• Annual service: annual inspection of water inlet valve, evaporator, pump, and refrigerant charge keeps production consistent and extends machine life.

Talk to MRCE About the Right Ice Machine for Your Operation

Melbourne Refrigeration and Catering Equipment stocks a comprehensive range of commercial ice machines for bars, cafés, restaurants, hotels, and hospitality venues. Our team can help you select and size the right unit — including advice on installation requirements and pairing with the rest of your bar refrigeration setup.

Browse our full commercial ice machine range online, or visit our showroom at 15 Station Street, Dandenong — Monday to Friday, 9:00am–5:00pm.

Call (03) 9794 8627, email sales@melbournerefrigeration.com.au, or contact us here for an obligation-free recommendation.