
CLR, or Calcium, Lime, and Rust Remover, is a cleaner that can be used on a variety of surfaces, including pots and pans. It is recognized as a safer alternative to traditional chemicals by the EPA's Safer Choice Program. CLR is also non-toxic and bio-based, containing largely renewable and plant-based ingredients. However, it is important to note that CLR is not recommended for all materials and should be used with caution. For example, it should not be used on natural stone, marble, aluminum, brass, or cast iron, as the acids in CLR can react with and pit these metals. Always check with the manufacturer before using CLR on any surface to ensure it is safe and effective.
| Characteristics | Values |
|---|---|
| Effectiveness | CLR can be used to remove rust from pans, but it is not recommended for cast iron pans as the acids in CLR will react with the clean metal. |
| Safety | CLR is non-toxic and safe for use on food bowls. |
| Usage | CLR should be used with rubber gloves. It should be applied to a damp cloth, sponge, brush, or directly to the surface. It should be allowed to sit for 2-3 minutes before rinsing with cold water. |
| Storage | CLR should be stored in a cool place and used within 3 years. |
| Compatibility | CLR should not be used on aluminium, brass, bronze, nickel, copper, mirrors, laminates, plastics, or wood. |
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What You'll Learn

CLR can be used on pots and pans to remove rust
CLR, or Calcium, Lime, and Rust Remover, can be used on pots and pans to remove rust. It is a household cleaning product that dissolves and removes tough stains from the build-up of calcium, limescale, and surface rust from hard water. CLR is also bio-based, containing largely renewable and plant-based ingredients.
To use CLR on pots and pans, pour enough of the solution to cover the bottom of the pot or pan. Swish it around, then add one cup of warm water for every cup of CLR used. Allow the mixture to soak for two minutes, then thoroughly rinse the pot or pan with cold, clean water. It is recommended to use a soft scouring pad while the CLR is sitting on the stains.
It is important to note that CLR should not be used on all materials. For example, CLR should not be used on natural stone, marble, terrazzo, coloured grout, painted or metallic glazed surfaces, plastic laminates, Formica, aluminium, steam irons, leaded crystal, refinished tubs, or any damaged or cracked surface. Additionally, CLR is not recommended for use in coffee makers that hold water permanently, such as Gevalia, Keurig, or Cuisinart coffee makers, or in espresso machines. Always check with the manufacturer of your pots and pans to ensure that CLR is safe and effective for their specific materials.
While CLR can be used to remove rust from pots and pans, there are also other methods and products available. For example, some people use steel wool, vinegar, oxalic acid, or lye to remove rust from cast-iron pans. However, it is important to research these methods and products thoroughly and use them with caution, as some may be more suitable for certain types of pots and pans than others.
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It should not be used on cast iron
While CLR can be used to clean a variety of surfaces, it is not recommended for use on cast iron. This is because the acids in CLR will react with the clean metal, causing pitting as the rust is dissolved.
CLR, or Calcium, Lime, and Rust Remover, is a corrosive cleaner that can be used to remove tough calcium and lime deposits from bathtubs, toilet bowls, sinks, glass, chrome, fiberglass, stainless steel, humidifiers, dishwashers, washing machines, and showerheads. It is part of the EPA's Safer Choice Program, recognising it as a safer alternative to traditional chemicals, and contains no phosphates. It is also septic-safe.
CLR can be used on pots and pans to remove rust. The recommended process is to pour enough CLR to cover the bottom of the pot or pan, add one cup of warm water, allow the mixture to soak for two minutes, and then thoroughly rinse with cold, clean water. A soft scouring pad can also be used while the product is sitting on the stains. However, it is important to always check with the manufacturer of your cookware before using any new product to ensure it is safe and effective on their materials.
Despite its effectiveness on various surfaces, CLR should not be used on cast iron due to the risk of adverse reactions. The manufacturer of CLR specifically recommends against using it on cast iron because the acids in the product will react with the metal, causing pitting and potential damage.
Therefore, while CLR can be a useful cleaner for removing rust and other stains from some pots and pans, it should not be used on cast iron cookware due to the potential for negative reactions with the metal surface.
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It can be used on stainless steel
Yes, CLR can be used on stainless steel. In fact, CLR manufactures a product called CLR Spot-Free Stainless Steel, which is designed to be used on stainless steel appliances and surfaces. This includes refrigerators, dishwashers, ovens, stoves, countertops, barbeque grills, and small appliances.
The product is easy to use and can be applied in one step. It is sprayed lightly onto the surface from a distance of about 6 inches, and then wiped with a clean, soft cloth, following the grain of the steel. It is recommended that you clean or wipe off any residual cleaning product before using CLR Stainless Steel. The product should also be shaken well before each application.
CLR Stainless Steel is effective at removing dirt, residue, and fingerprints, leaving a streak-free, shiny protective barrier. It is also formulated to be free of oily residue.
It is important to note that stainless steel is susceptible to damage from acidic substances like vinegar or lemon juice. Therefore, spills should be wiped away promptly to avoid permanent marks. Soft cloths or sponges should be used, as steel wool or abrasive brushes can scratch and damage the surface, making it more prone to rust.
To clean hard water stains, CLR recommends using a 50/50 solution of Calcium, Lime, and Rust Remover and warm water in a glass or porcelain bowl.
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It can be used on coffee pots, but not in espresso machines
CLR (Calcium, Lime and Rust Remover) can be used to clean coffee pots and coffee makers, but it is not recommended for espresso machines.
CLR is a powerful cleaning solution that can effectively remove water stains, coffee bean oils, lime, and calcium deposits from coffee makers. It is important to note that CLR contains strong acidic substances, and its use should be guided by the manufacturer's instructions. While CLR can be used in coffee pots and some coffee makers, it is not suitable for all coffee machines.
Coffee makers that hold water permanently, such as those with permanent carbon or charcoal filters, are not recommended for cleaning with CLR. The carbon or charcoal filter can catch the CLR solution, leading to deposition in the filters. Additionally, CLR should not be used in specific brand coffee makers, such as Gevalia, Keurig, or Cuisinart, as per the manufacturer's instructions.
When using CLR in a coffee pot or compatible coffee maker, mix one part CLR with eight parts water and pour the mixture into the water tank. Run the machine to allow the descaling process to occur, then dispose of the dirty liquid. Repeat the process with clean water to ensure a thorough rinse.
However, it is important to emphasize that CLR should not be used in espresso machines. Espresso machines have specific cleaning requirements, and using CLR can result in several issues. Firstly, CLR contains strong acids that can react with the metals in espresso machines, leading to an unpleasant taste and smell in the brewed coffee. Even after multiple purges, the chemical taste and smell may persist, rendering the espresso machine unusable. Secondly, CLR can cause clogging in espresso machines, further damaging the machine and impacting its functionality.
Therefore, while CLR can be used on coffee pots and some coffee makers, following the manufacturer's instructions, it should not be used in espresso machines to avoid potential issues with taste, smell, and machine functionality.
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It should not be mixed with other household cleaners
While CLR is an effective cleaner for calcium, lime, and rust, it is a heavy-duty product that requires some precautions. One of the most important precautions is to never mix CLR with other household cleaners or bleach. Mixing CLR with bleach creates toxic chlorine gas, which is extremely dangerous. Additionally, mixing CLR with other household chemicals can result in toxic fumes, posing a serious health hazard.
The Calcium, Lime, and Rust Remover by CLR should only be used as directed. It is crucial to follow the manufacturer's instructions and never mix it with any other cleaning products. This product is designed to be used on its own and should not be combined with other substances. Mixing it with other cleaners can create dangerous chemical reactions, leading to hazardous fumes or even explosions under certain conditions.
Furthermore, CLR should not be used on certain materials, such as wood, clothing, wallpaper, carpeting, natural stones, brass, copper, aluminum, galvanized metals, and any painted, coated, or sealed surfaces. It is important to always check the manufacturer's recommendations for the item you are cleaning to ensure compatibility with CLR. Mixing CLR with other cleaners may also damage the surfaces you are trying to treat.
When using CLR, always wear household rubber gloves and test the product on a small, hidden area first. Work in a well-ventilated area and be cautious of any spills or drips, as CLR can damage incompatible surfaces if left unattended. Always clean up spills immediately and never leave CLR on a surface for longer than two minutes.
In summary, CLR should never be mixed with other household cleaners or bleach due to the potential hazards and toxic fumes that can be created. By following the manufacturer's instructions and taking the necessary precautions, you can safely and effectively use CLR for its intended purposes.
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Frequently asked questions
Yes, CLR Calcium, Lime and Rust Remover can be used on pots and pans. Pour enough of the solution to cover the bottom of the pan, swish it around, and add one cup of warm water. Allow the mixture to soak for two minutes and then thoroughly rinse with cold, clean water.
CLR should not be used on natural stone or marble, terrazzo, pebblecrete, gravel, coloured grout, painted surfaces, plastic, laminates, aluminium, brass, bronze, copper, mirrors, wood, clothing, wallpaper, or carpeting.
CLR is a Calcium, Lime, and Rust Remover that is bio-based and contains plant-based and renewable ingredients.
CLR is recommended to be used or disposed of within three years.
Although some sources suggest that CLR can be used on cast-iron pans to remove rust, the manufacturer of CLR does not recommend using it on cast iron as the acids in CLR will react with the clean metal.










































