
A Bain Marie is a water bath used in cooking and scientific applications to maintain a consistent temperature.
It's essentially a container filled with water that's heated to a specific temperature, allowing for precise temperature control.
This technique is often used in cooking to gently heat delicate foods, such as custards and sauces.
In scientific applications, a Bain Marie is used to incubate samples at a controlled temperature.
What is a Bain Marie?
A bain marie is a type of double boiler that's traditionally a wide, cylindrical, metal container with a handle and three or four basic parts.
It's usually made of metal and has a handle, outer container, inner container, and sometimes a base underneath.
The inner container is immersed about halfway into the working fluid, which is often water, but can be steam or oil instead.
The maximum obtainable temperature of the working fluid is dictated by its composition and boiling point at the ambient pressure.
The surface of the inner container is always in contact with the working fluid, making the bain marie a constant-temperature heat source.
Using water as the working fluid and operating at sea level will not allow the material in the lower container to exceed 100°C (212°F), the boiling point of water at sea level.
Different working fluids, such as oil, or pressurizing the outer container, will result in different maximum temperatures obtainable in the inner container.
Using a Bain Marie
A bain marie is a kitchen staple that's perfect for cooking delicate foods like custards and sauces. It's essentially a water bath that protects your food from extreme heat and drying out.
You can use a bain marie to create the silkiest sauce, like a hollandaise sauce, by emulsifying eggs and dairy ingredients. This is because the gentle heat and steam help prevent the eggs from overcooking and curdling.
To make a bain marie, you'll need a baking dish or high-sided cake tin, an old tea towel or serviette, and boiling water. You can also use a small saucepan with high sides and a large heat-proof bowl to create a makeshift bain marie.
A bain marie is especially useful for making custards, as it helps prevent the milk from boiling and breaking the custard. This is because the constant gentle temperature and steam help reduce the likelihood of overcooking the dairy and forming an unwanted skin.
Here are some common uses for a bain marie:
- Creating silkiest sauces, like hollandaise sauce
- Making custards, like crème anglaise
- Tempering chocolate to prevent burning and clumping
If you're looking to make a bain marie for oven-baked custards, you'll need to use a large roasting dish and add hot water to come up to about 3/4 way up the dishes or ramekins. This ensures a gentle baking of the custard.
Some people prefer to use Pyrex bowls for their bain marie, but be careful not to let the simmering water touch the bottom of the bowl. If you're worried about your glassware breaking, you can look for Pyrex alternatives that are specifically designed for use over a bain marie.
Culinary Applications
A bain-marie is a versatile kitchen tool that can be used for a variety of culinary applications. It's essentially a double boiler that allows for gentle heat transfer, making it perfect for cooking delicate sauces and desserts.
Chocolate lovers will appreciate that a bain-marie can be used to melt chocolate without splitting or caking onto the pot. This is especially useful when making chocolate fondue for dipping fruits.
Cheesecakes often benefit from being baked in a bain-marie to prevent the top from cracking in the center. By placing a pan of hot water on the lower shelf of the oven, you can create a steamy environment that helps the cheesecake cook evenly.
Some classic warm high-fat sauces, like Hollandaise and beurre blanc, are often cooked using a double-boiler bain-marie to emulsify the mixture of fats and water without curdling or splitting the sauce.
Here are some specific examples of culinary applications for a bain-marie:
- Melting chocolate to avoid splitting or caking
- Baking cheesecakes to prevent cracking
- Cooking classic warm high-fat sauces like Hollandaise and beurre blanc
- Thickening condensed milk for confection-making
- Re-liquefying hardened honey
Whether you're a seasoned chef or a home cook, a bain-marie is a valuable addition to your kitchen arsenal. It's a simple yet effective way to achieve perfect results in a variety of dishes.
Alternatives and Uses
If you don't have a bain-marie, don't worry, there are alternatives. You can use a heatproof bowl set over a pot of simmering water, just like a bain-marie.
Making a great custard requires a lot of attention, but a bain-marie helps with temperature control, reducing the likelihood of overcooking your dairy and unwanted skin to appear.
Using a microwave can also be an alternative, but be careful not to overheat your ingredients.
Modern Day Kitchens
In modern day kitchens, a bain-marie is often used in the form of a double boiler. This consists of a metal cylindrical container and a smaller metal cylindrical container that fits inside the larger one.
Water is added to the bottom of the larger container, which will begin to steam and warm the smaller container once placed on heat. The gentle heat created by the steam is a controlled way to evenly heat the smaller container.
A springform pan used to make a cheesecake is often placed into a larger pan with water to surround the cheesecake. This water helps to protect the cheesecake while it's baking.
These pans can also be used to heat or cool food over a period of time. Food is sometimes placed in a pan above another pan with hot water or ice below it, which is also a bain-marie.
Take a look at this: Bain Marie Pan
Alternatives

If you're looking for alternatives to traditional bain-maries, you've got options. Electric dry-heat bains-marie are a great choice, consuming less energy and requiring less cleaning than their liquid-filled counterparts.
These electric bains-marie can heat up quickly and operate at higher temperatures, making them a convenient option. They're also often less expensive than traditional bains-marie.
Some electric bains-marie use hot water or steam to heat, which can be more efficient and cost-effective.
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