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How to Clean a Brasero: Complete Guide to Maintenance and Rust Prevention

25 June 2026 by
How to Clean a Brasero: Complete Guide to Maintenance and Rust Prevention
COEO

To clean a fire pit effectively, you must first scrape the grill while still hot to detach the residues more easily, clean the plancha without damaging its seasoning, empty the ashes, treat the rust according to its level, and then protect the device between uses. A poorly maintained fire pit often ends up losing performance, with a plate that sticks, uneven temperature rise, or the appearance of residues and corrosion, which can quickly detract from the enjoyment of use and turn convivial moments into maintenance burdens.

Whether you use your fire pit regularly or occasionally, these maintenance actions help to maintain reliable cooking, avoid premature wear, and extend the lifespan of the equipment. Here you will find the essential steps to clean the grill, the plancha, and the hearth, remove ashes, eliminate rust, and protect the fire pit according to its material, in order to keep a high-performing device that is easier to maintain and ready to serve for longer.

Step 1: clean the grill while hot for quick and effective maintenance

Cleaning the fire pit should always start with the grill or cooking surface, ideally immediately after use, when it is still hot, as food residues and fats are still soft and detach naturally without the need for aggressive chemical products.

By brushing or scraping with the help of a COEO spatula on the hot surface, you significantly facilitate cleaning while preserving the material, which not only saves time but also prevents the accumulation of deposits that could alter the quality of future cooking.

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Step 2: clean the plancha without damaging the seasoning

Cleaning a fire pit plancha requires special attention, particularly to preserve the seasoning, this fine protective non-stick layer that forms with heat and cooking fats.

When the plate is still warm, it is recommended to lightly pour water on the surface to create a steam effect that will naturally help to lift the residues, without damaging the metal or deteriorating the existing protection.

Once the residues are lifted, simply use a spatula or a cloth to gently clean the surface, which helps to keep the plate clean, efficient, and ready for use without compromising its condition.

Step 3: empty the ashes and maintain the bowl of the plancha fire pit

After each use and at least 24 hours after the fire has gone out, it is essential to clean this appliance by removing the ashes from the basin, as they retain moisture, accelerate corrosion, hinder air circulation, and reduce the efficiency of the fire, posing an unnecessary safety risk during maintenance, especially after charcoal use.

This operation can be carried out by removing the cold ashes using a shovel and a brush, before cleaning the basin with a soft sponge and warm water with black soap or dishwashing liquid, then scrubbing the interior walls with a stiff brush, taking care to avoid any abrasive tools like steel wool, which could damage the surface and compromise the durability of the brazier.

Step 4: eliminate stubborn stains and treat rust effectively

The appearance of rust on the plancha of a brazier is a common phenomenon, especially on a device running on charcoal when it is not regularly maintained, as exposure to ambient moisture, temperature variations, or lack of surface protection naturally promotes the oxidation of steel, including on the plate and the basin, even after good maintenance. Regular cleaning also improves the overall efficiency.

For safety, be aware of the risk of burns during cooling operations.

Easily remove rust from the plancha of your fire pit

Easy steps to remove rust on the cooking plate for your fire pit / fire bowl

To effectively remove rust from the cooking plate of your brasero, it is essential to adapt the method according to the level of oxidation observed, in order to preserve the material while achieving a clean, even surface ready to be reused in good conditions; among the good advice to follow, remember to rinse with clear water after removing the rust before putting the plate back into service.

1. Light presence of rust

When the rust is superficial and not extensive, it is generally sufficient to light the brasero to gradually raise the temperature of the plate, then to scrub the surface using a suitable spatula, the heat allowing the fine traces of oxidation to naturally detach without excessive effort and without damaging the metal.

2. Localised or slightly ingrained rust

In cases where the rust is more present in certain areas or begins to become ingrained, it is recommended to use steel wool to clean the surface precisely, making controlled movements that allow for the elimination of oxidation while limiting the risk of damaging the plate.

3. Significant rust or thick layer

When the rust covers a large part of the plancha or forms a thicker layer, it may be necessary to use a mechanical tool, such as a grinder equipped with a rigid steel wire brush, in order to effectively strip the surface and restore healthy metal, ready to be treated again.

In this type of situation, it is strongly advised to consult a professional in order to select equipment that is perfectly suited to your setup, which helps to avoid any handling errors that could permanently damage the cooking plate.

Once the rust has been removed and the surface restored, it is essential to immediately apply suitable protection, particularly by creating a new seasoning or by applying a thin protective layer, in order to limit the rapid reappearance of oxidation and to ensure a durable use of your fire pit.

Step 5: protect your fire pit between uses

Protecting the fire pit between each use is an essential element to ensure its durability and limit exposure to external elements, particularly rain and dust.

Using a suitable protective cover effectively preserves the structure of the fire pit, limits the appearance of rust, protects it from the wind during windy periods, and maintains a good level of performance in the long term.

In coastal areas, the presence of salt in the air can accelerate the deterioration of metal surfaces, particularly on Corten steel whose patina can flake, without altering the quality of the product, as it is sufficient to remove any flakes to allow the natural protection to reform. The base can also be wiped with a damp cloth to remove dust.

Cleaning according to the material of your fire pit

Not all fire pits require the same type of maintenance, and the materials are a determining factor, as they influence both maintenance, durability, and ease of cleaning of the device. Some items or accessories also require appropriate care depending on their material.

Corten Steel: a natural protective patina

Corten steel naturally develops a protective layer when in contact with air, which acts as a barrier against corrosion and should not be confused with dirt.

This patina is normal, desired, and essential for the durability of the fire pit, and it should be allowed to evolve without attempting to remove it.

Powder-coated Steel: simple and effective maintenance

Powder-coated steel surfaces can be cleaned using a soft cloth and a soapy solution, which helps preserve their appearance while avoiding any degradation of the coating.

The use of a protective cover is still recommended to extend the lifespan of the material.

Steel Plancha: the importance of seasoning

The steel plancha relies on an effective seasoning that provides protection against food sticking and corrosion, which requires appropriate and regular maintenance to maintain its performance. By comparison, stainless steel grills are appreciated because they are easy to clean, resist rust, and last over time.

How often should you clean your fire pit?

The frequency of maintenance depends on the use of the fire pit, particularly if the fire is regularly fed with wood, but certain recommendations ensure optimal operation over time.

It is advisable to clean the plate after each use, to remove the ashes every two to three uses, and for a rarely used fire pit, to plan for a cleaning every 15 days, as well as a more thorough cleaning several times per season to keep the equipment in perfect condition.

Why is maintaining your fire pit essential?

Maintaining the fire pit is an essential step to ensure sustainable and optimal use, as over time, ashes, fats, and cooking residues can accumulate and affect the overall performance of the equipment.

A poorly maintained brazier can lead to several malfunctions, including :

  • poor air circulation
  • a slower temperature rise
  • uneven cooking
  • the appearance of rust or oxidation

Conversely, regular maintenance helps to keep a brazier efficient and pleasant to use.

The benefits of regular maintenance

By adopting good maintenance habits, you can :

  • maintain an effective and even cooking surface
  • prolong the lifespan of your brazier
  • facilitate each use without intensive cleaning
  • preserve a clean and aesthetic surface over time

A well-maintained brazier requires less effort on a daily basis and guarantees a better user experience.

The COEO method: an expert approach to fire pit maintenance

At COEO, the maintenance of the brazier is based on a simple yet demanding approach, aimed at sustainably preserving the performance of the cooking surface while respecting the natural properties of steel.

This method involves prioritising regular actions and natural solutions, rather than aggressive chemical products, in order to maintain a healthy, efficient, and durable surface over time.

The fundamental principles of the COEO method

  • clean the surface after each use
  • apply regular protection
  • preserve the natural seasoning of the plancha
  • avoid abrasive or corrosive products

This approach optimises cooking while limiting material wear.

The use of beeswax: a high-performance natural protection

As part of this method, COEO recommends the use of natural beeswax as a complementary protective solution, particularly effective when the brazier is not used for an extended period.

Working with beekeepers from the south of France, COEO prioritises a quality wax, recognised for its protective and water-repellent properties.

The advantages of beeswax for a fire pit

Applying a thin layer of beeswax allows you to :

  • protect the plate against moisture
  • limit the appearance of rust
  • sustainably nourish the surface of the steel
  • enhance the protection of the seasoning

Unlike industrial solutions, this natural technique is part of a qualitative, sustainable and material-respecting approach.

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