
A commercial bain marie is the quiet workhorse of any operation that holds and serves hot food. This piece of equipment is designed to keep food at a safe serving temperature and ready to serve — buffets, takeaway shops, cafeterias, pubs, restaurants and catering businesses, and aged-care kitchens all rely on one as their everyday food warmer. A bain marie keeps food warm and ready without overcooking it, so prepared food stays at safe serving temperatures across a long service. Choose the right commercial bain marie and your food stays hot, moist and compliant; choose the wrong one and you'll battle dried-out food, cold spots, food waste and food-safety headaches.
This commercial bain marie buying guide explains how to choose the right bain marie for your kitchen: the difference between wet and dry bain maries, the key features that matter, how to size a unit to your menu using gastronorm (GN) food pans, and a few recommended models from our range. It's written for Australian restaurant owners, chefs and caterers buying their first hot food display unit or replacing one that no longer holds temperature — so you can match the bain marie to your food service with confidence. Bain maries help keep meals warm and ready to be served, which makes service smoother and customers happier.
Types of bain maries
Bain maries come in a few formats, and the first decision is how they apply heat: wet, dry, or a combination of both.
- Wet bain marie (wet heat). A wet bain marie uses heated water in a shallow bath beneath the GN pans, surrounding the food with gentle, even, indirect heat. The heated water keeps food at an even temperature without drying it out, which makes wet operation ideal for sauce, gravy, curries, soups and saucy dishes that need to stay moist over a long hold. The indirect heat helps maintain food quality and an ideal serving temperature for longer.
- Dry bain marie (dry heat). A dry bain marie uses heating elements (or burners to heat the base) to warm the pans directly, without water. Dry heat is quicker to set up (no filling or draining) and better suited to foods that should stay crisp or dry — roast meats, fried foods and pastries — though it can dry out wet dishes if held too long.
- Combination (wet and dry) bain marie. A wet-and-dry bain marie can run either way, giving you the flexibility to hold saucy dishes with wet heat and dry dishes without. For most venues serving a varied menu, a wet-and-dry unit is the most versatile choice and keeps prepared food ready for service.
Whether wet or dry, bain maries use a controlled heat source designed to keep food at safe serving temperatures without compromising food quality. Which one suits you depends on the type of food you serve.
Beyond the heat method, bain maries split into countertop models (compact, easy to move around, ideal for cafes and small takeaways) and freestanding units (larger, often part of a servery line, great for buffets and high-volume venues). Countertop models are perfect for keeping a few dishes warm and ready, while freestanding units suit a small buffet through to a large self-service spread. Browse the full hot bain marie range and the wider hot food displays for served and self-service setups.
Key features to compare
Once you've chosen wet, dry or combination, these are the features that decide whether a bain marie quietly does its job for years.
- GN pan configuration. Bain maries are sized by the gastronorm (GN) pans they hold — for example 4 × 1/1 GN or 8 × 1/2 GN. The configuration sets how many dishes you can hold at once and in what portions, so match it to your menu.
- Pan size compatibility. Confirm the unit takes the GN pan sizes you use (full 1/1, half 1/2, third 1/3 and so on) and the pan depth you need. Browse gastronorm pans to plan your fit-out.
- Wet vs dry operation. As above — a combination unit gives the most flexibility across a varied menu.
- Temperature control. The best units offer precise temperature control: accurate, adjustable thermostatic control that holds an even temperature across every pan and keeps food in the safe hot-holding zone (at or above 60°C, in compliance with Australian food safety standards) without overcooking it. Holding food at a safe temperature for the right holding times helps prevent food drying out and ensures food stays at safe serving temperatures.
- Construction and hygiene. Stainless steel construction is the commercial standard — durable, easy to clean and maintain, and good for hygiene. Look for solid build quality that survives daily service in a professional kitchen.
- Sneeze guard / glass. For self-service and front-of-house display, a sneeze guard or glass canopy is a food-safety and hygiene must, and it lifts food presentation and the dining experience. Served-from-behind units may not need one.
- Wattage, power and energy efficiency. Check the wattage and power requirements suit your site — countertop units typically run on a standard outlet, while larger freestanding units may need dedicated circuits. Better energy efficiency lowers running costs since the unit holds temperature for long periods.
Commercial-grade build and local support matter too. A bain marie from one of the top brands with Australian support means parts on the shelf and service a phone call away, rather than a long wait on an overseas component — and it keeps your commercial kitchen running with fewer interruptions.

How to size your bain marie
Sizing a bain marie comes down to matching GN positions to your menu and your service volume.
- Count your hot dishes. List how many different hot dishes you hold at once. Each typically wants its own GN pan, so a menu of six hot items needs at least six GN positions (or a mix of full and half pans to suit portion sizes).
- Match portions to pan sizes. Use full 1/1 pans for high-volume staples and smaller 1/2 or 1/3 pans for lower-volume sides and sauces. Mixing pan sizes lets one unit hold more dishes.
- Allow for peak service. Size for your busiest service, not your quietest. A takeaway at lunch or a buffet at dinner needs enough holding capacity to plate quickly without running a pan empty.
- Leave room to grow. If your menu is likely to expand, a slightly larger unit (or a freestanding model with more GN positions) saves you upgrading in a year.
As a quick guide: a small cafe or takeaway often suits a countertop unit holding 3–4 GN pans, a busy takeaway or pub bistro a 4–6 pan unit, and a buffet or caterer a larger freestanding servery line. When in doubt, our team can match GN positions to your menu.

Recommended commercial bain maries
Our hot bain marie range covers everything from a compact cafe countertop unit to a full freestanding servery. A few starting points:
- Countertop wet & dry (cafes, small takeaways). A Bonvue countertop wet-and-dry bain marie sits on the bench and holds a handful of GN pans, switching between wet and dry as your menu needs. Compact and versatile — ideal for a cafe counter or a small takeaway.
- Freestanding wet & dry display (takeaways, pubs, buffets). A Thermaster wet-and-dry bain marie food display holds 4–6 × 1/1 GN pans in a freestanding cabinet, perfect for a takeaway hot-food counter or a pub bistro servery. Available with or without a glass top for self-serve or served-from-behind.
- Heated food display (high-volume servery, buffets). A larger heated food display holds multiple GN pans for buffets and high-turnover venues. Browse the full hot food displays range.
Every unit is backed by our price-match guarantee and Australian-owned support. Choosing the right commercial bain marie depends on the type of food you serve, your volume and your bench space — buying a bain marie that suits your menu lifts service efficiency and reduces food waste. Not sure which suits your professional kitchen? Call our team and we'll help you choose, matching the right bain marie to your hot dishes and service volume. The right bain marie provides better food at safe temperatures, smoother service and happier customers.
Ready to choose your commercial bain marie?
Commercial Kitchen Appliances is your one-stop-shop for commercial kitchen equipment — including electric bain maries and hot food displays that keep food warm — Australian owned and backed by local support. We cater to cafes, takeaways, pubs and catering businesses across Australia. Tell us your menu, your service style and your bench space, and we'll help you pick the right unit.
- 📞 Call 1300 000 927 to speak with our team
- 📍 Showroom: 151 Parramatta Road, Granville NSW 2142
- 💳 SilverChef finance available for eligible operators
- ✅ Price-match guaranteed on like-for-like commercial equipment
- 🔥 Shop commercial bain maries
Comparing other gear? Browse our Buying Guides hub for more equipment buying guides, or explore payment and finance options. Commercial warranties vary by product — always check the warranty terms before you buy.
Frequently asked questions
What is the difference between a wet and dry bain marie?
A wet bain marie heats a shallow water bath beneath the GN pans, surrounding food with gentle, moist heat that stops it drying out — ideal for sauces, curries, soups and saucy dishes. A dry bain marie heats the pans directly without water, which suits foods that should stay crisp or dry, like roast meats and fried foods. A wet-and-dry (combination) unit does both.
How do I size a commercial bain marie?
Match the number of GN pan positions to how many hot dishes you hold at once, using full 1/1 pans for high-volume staples and smaller 1/2 or 1/3 pans for sides and sauces. Size for your busiest service, and leave room to grow. A small cafe often suits a 3–4 pan countertop unit, while a buffet or caterer needs a larger freestanding servery.
What temperature should a bain marie hold food at?
Under Australian food-safety standards, hot food must be held at or above 60°C. A good bain marie has accurate, adjustable thermostatic control to keep food in that safe hot-holding zone without overcooking it. Always check food temperatures regularly during service.
Do I need a sneeze guard on my bain marie?
For self-serve or front-of-house display where customers serve themselves or stand close, a sneeze guard or glass canopy is a food-safety requirement and improves presentation. Units served from behind by staff may not need one. Choose based on your service style.
Can I finance a commercial bain marie?
Yes. SilverChef financing lets eligible operators fund commercial bain maries and other kitchen equipment, with approvals on qualifying applications in as little as five minutes — a popular option for managing cash flow when fitting out or upgrading.