The short answer is yes, outdoor kitchens can rust.
But don't panic, it's definitely something that can be avoided.
Stainless steel is often considered the gold standard for outdoor kitchen materials, as it is highly rust-resistant, however, even the most rust-resistant materials need proper care to maintain their integrity. It's crucial to keep all surfaces protected from the elements with regular cleaning and protection. By taking proactive measures to care for your outdoor kitchen, you'll be able to enjoy it for years to come without worrying about rust.
By following the tips outlined below, you can enjoy a rust-free and hygienic outdoor kitchen for many years to come. Remember that taking preventative measures and keeping your outdoor kitchen clean is the key to keeping it rust-free.
Table of Contents
- The Problem With Rust
- Aren’t Outdoor Kitchen Appliances Already Made From Rustproof Materials?
- Is Aluminum Suitable for an Outdoor Kitchen?
- Is Copper a Good Choice for an Outdoor Kitchen?
- Can Powder-Coated Steel Be Used in an Outdoor Kitchen?
- Why We Don't Recommend Galvanized Steel for Outdoor Kitchens
- Tips for Preventing Rust in Your Outdoor Kitchen
The Problem With Rust
Rust may seem like a harmless orangey-brown coating on metal, but it's actually a silent assassin, slowly gnawing away at the strength and integrity of all things metallic.
It's the result of a nefarious partnership between oxygen and water, which conspire to turn iron into iron oxide, also known as oxidation. And, like any good villain, rust loves a humid environment where it can carry out its dirty work even faster.
But the real kicker? Not only does it make metal objects look unsightly, but it can also weaken them to the point of bending, warping, and breaking. And, once rust gets a foothold, it spreads like wildfire, leaving behind holes and structural damage.
Rust doesn't just ruin the aesthetics of outdoor kitchen appliances, it can also affect their performance, making them less efficient and shortening their lifespan.
Proximity to the sea is particularly problematic. Saltwater is highly corrosive and can cause metal surfaces to rust over time. The salt in the air can also settle on metal surfaces, accelerating the rusting process. To prevent rust, regularly clean appliances to help keep rust at bay and choose materials that are resistant to corrosion, such as stainless steel or powder-coated metals.
Beware the rusty menace, for it may seem small, but it packs a big punch.
Aren’t Outdoor Kitchen Appliances Already Made From Rustproof Materials?
Yes, it's true that outdoor kitchen appliances are made from rust-resistant materials such as stainless steel, aluminum, or powder-coated steel. These materials are able to withstand the elements and resist rust better than other materials.
- Stainless Steel | This is a popular choice for outdoor kitchens due to its corrosion resistance, durability, and ease of cleaning. Stainless steel is also a versatile material that can be used for a wide range of outdoor kitchen components, such as countertops, sinks, and appliances.
- Aluminum | It's often used for outdoor kitchen frames, cabinetry, and outdoor kitchen islands.
- Copper | This is a more expensive option, but copper has a distinctive look and is known for its durability and resistance to corrosion. Copper can be used for outdoor kitchen countertops, sinks, and other decorative accents.
- Powder-coated steel or Aluminum | This has been coated with a high-temperature powder coating, which provides a durable finish that is resistant to rust and other forms of corrosion. Powder-coated steel is more affordable than stainless steel, but it is more susceptible to rust if it becomes chipped or scratched.
Can Stainless Steel Rust?
Stainless steel is the most rust-resistant metal to use in an outdoor kitchen - it's basically a superhero, always ready to battle against rust. But even superheroes have their weak spots and stainless steel is no exception. The secret weapon that gives stainless steel its rust-fighting powers is chromium, which forms a shield on the steel's surface. But if the shield gets damaged or removed, the steel underneath can be exposed to oxygen and water, leading to rust.
This can happen if the stainless steel is exposed to harsh chemicals or environments, such as high temperatures, high humidity, or acidic or salty conditions. Stainless steel can also be damaged by physical means such as scratching or welding, which can also remove the protective chromium oxide layer.
Preventing Rust on Stainless Steel
The good news is that to prevent rust, stainless steel is often alloyed with other elements such as nickel, molybdenum, and nitrogen. These elements improve the corrosion resistance of stainless steel by forming more stable and protective oxide layers on the surface.
That being said, regular cleaning and polishing, to remove dirt and impurities that can accumulate on the surface of the steel are essential to prevent damage to the protective oxide layer.
Is Aluminum Suitable for an Outdoor Kitchen?
Aluminum is like the life of the party when it comes to metals, it's light, strong, and always ready to mingle. It is also highly resistant to corrosion, making it a popular choice for outdoor and marine applications so yes, it's a great option for outdoor kitchens.
It's suitable for:
- Outdoor kitchen frames
- Cabinetry
- And outdoor kitchen islands
Unlike steel, aluminum does not contain iron, so it does not rust in the traditional sense.
Preventing Aluminum Corrosion
However, it can corrode in other ways. For example, it can be attacked by harsh chemicals, such as acids and salts, which can cause it to corrode or weaken over time. It can also be affected by environmental factors such as exposure to UV light, which can cause it to lose its shine making it appear dull.
Overall, aluminum is a highly durable and corrosion-resistant metal that is well-suited for outdoor applications. But remember, while it does not rust, it can corrode in other ways so proper maintenance and protection are key to keeping the aluminum in good condition.
Is Copper a Good Choice for an Outdoor Kitchen?
Copper is a popular choice for outdoor kitchens because of its durability and resistance to corrosion. Unlike iron-based metals, copper does not rust, but it does develop a patina over time. This patina is a natural protective layer that forms on the surface of the copper, preventing further corrosion. While the patina can change the color of the copper and make it appear aged, it does not affect the strength or integrity of the metal.
The great thing about copper is that it's a non-toxic and safe material that can be used in contact with food. It's also a good heat conductor so it's a good option for:
- Kitchen appliances such as cookware
- Sinks
- Range hoods
- Accessories
The downside is that copper is a relatively soft metal so can be quite easily scratched or dented. It can also corrode if it is exposed to acidic or salty environments so it's best avoided if you live by the coast. This type of corrosion is called "copper patina" and it is a greenish-blue film on the surface of the copper. While it does not weaken the structural integrity of the copper, it can change its appearance.
In summary, copper is a good choice for an outdoor kitchen because it is durable, resistant to corrosion, and non-toxic. The patina that develops over time can add character to the metal, and it will not affect the strength or integrity of the copper. However, it may require more maintenance and is more expensive than other options.
To be clear "copper patina" specifically refers to the greenish-blue corrosion that can occur on copper when exposed to acidic or salty environments. "Patina" on its own refers to any change in color or surface appearance that occurs on copper over time, including the natural darkening and aging process of the metal.
Caring for Copper
One thing to keep in mind is that copper will naturally change color over time, creating a beautiful patina. But if you prefer to preserve the color of the copper, you can apply a wax to it every 2-3 weeks.
Avoid leaving anything acidic, such as grapefruit or tomato, on the surface as this can leave behind prominent stains. But don't worry, if this happens the copper will eventually heal itself and blend back into a natural-looking mix of coppery tones.
Cleaning copper is easier than you'd think. All you need is a soft cloth and mild soap and water. Simply wipe away any residue and you're good to go. To add an extra layer of protection, consider using a copper care kit like Skinkology's Copper CareIQ Kit.
Can Powder-Coated Steel Be Used in an Outdoor Kitchen?
Powder-coated steel is also a cost-effective option to choose when planning an outdoor kitchen as it is cheaper than other high-end options such as stainless steel.
The powder coating acts as a protective barrier that helps to resist rust and other forms of corrosion caused by exposure to the elements. On the plus side, powder coating can be applied in a wide range of colors and finishes, which makes it a versatile and attractive option for outdoor kitchen design. Some of the most common places to use powder-coated steel in an outdoor kitchen include:
- Cabinets
- Countertops
- Other surfaces that are exposed to the elements
However, a word of warning, powder-coated steel is only as rust-proof as the quality of its coating, so if the coating is damaged or exposed to harsh conditions, rust can occur.
Protecting Powder-Coated Steel
While powder-coated steel is scratchproof to a point, take every care to keep the coating in good condition and scratch-free to prevent rust from forming.
Why We Don't Recommend Galvanized Steel for Outdoor Kitchens
Due to its corrosion resistance galvanized steel can be used in outdoor kitchens for things like:
- Outdoor kitchen frames
- Cabinetry
- Islands
However, it should never be used if the steel is to be heated to high temperatures, as it can release toxic fumes. This makes it unsuitable for use in certain components of an outdoor kitchen, such as for grills or ovens where high heat is required. What's more, galvanized steel can release zinc fumes when heated and zinc fumes can cause metal fume fever. This is a type of flu-like illness that can cause symptoms such as fever, chills, headache, nausea, and chest tightness.
Now, it is true that galvanized steel can release toxic fumes if it's heated to high temperatures, but there's more to it. The exact temperature at which this happens can vary, but it's typically around 900-1000 degrees Fahrenheit. So, if you're planning on using it for things like grills or ovens in your outdoor kitchen that will be exposed to those kinds of temperatures, then it's not the right option.
Furthermore, it's also correct that it should never be used near food as the zinc coating can flake off and contaminate the food, which can be toxic if ingested. It's important to be aware of these limitations and to carefully consider the specific uses for galvanized steel in an outdoor kitchen, to ensure the safety and well-being of those using it.
Does Galvanized Steel Rust?
Galvanized steel is a steel that has been coated with a layer of zinc. This process, called galvanization, is done to protect the steel from rust and other forms of corrosion. The zinc coating acts as a barrier between the steel and the environment, preventing moisture and oxygen from reaching the steel and causing rust.
However, it is important to note that while the zinc coating on galvanized steel provides excellent corrosion protection, over time the zinc can wear off, exposing the steel underneath to the elements. This can happen due to abrasion, cutting, or bending of the steel, or due to exposure to harsh environments such as salt water. When the zinc coating is worn off, the steel is no longer protected and can begin to rust.
While galvanized steel can be used in an outdoor kitchen, you should be mindful of its limitations and consider other options that are more suitable.
Tips for Preventing Rust in Your Outdoor Kitchen
To prevent rust from forming in your outdoor kitchen, it's essential to take proper care and maintenance of the materials. Here are some tips and tricks on how to keep your outdoor kitchen rust-free:
- Regular Cleaning Is Crucial | This includes washing the surfaces with mild soap and water and drying them thoroughly. Even if you don't use your outdoor kitchen for any length of time still clean and maintain the materials at least once a month.
- Use a Rust Remover | Specifically designed for outdoor kitchens to clean off any rust spots and then apply a rust inhibitor to protect the metal. This will not only remove the rust but also prevent it from coming back.
- Invest in a Protective Cover | They can help keep the metal dry and protected from the elements. This will help to protect your outdoor kitchen from the sun, rain, and other natural elements that can cause rust.
- Apply a Sealant | on the surface of the metal to protect it from water damage. This will create an additional barrier between the metal and the elements, making it more difficult for rust to form.
- Keep Your Outdoor Kitchen Clean and Hygienic | by cleaning it regularly, and using a food-grade sanitizer to kill germs and bacteria. This will not only prevent rust but also keep your outdoor kitchen safe for cooking.
- Store Your Outdoor Kitchen Appliances Indoors When Not in Use | This will help to prolong the life of your appliances and prevent rust from forming.
By following these tips and tricks, you'll be able to keep your outdoor kitchen rust-free and in top working condition for years to come. Remember that rust prevention is much easier than rust removal, so taking action now can save you a lot of time and money in the long run.
