
Calcium, Lime, and Rust Remover (CLR) is a household cleaning product used for dissolving tough stains, such as calcium, lime, and iron oxide deposits. CLR can be used to clean a variety of surfaces, including stainless steel pots and pans. However, it is not recommended for use on all materials, such as natural stones, galvanized metals, and cast iron, as it may react with and compromise the surface. It is always important to check with the manufacturer of the item being cleaned to ensure that CLR is safe and effective for that particular material. While CLR can be an effective cleaning solution for certain types of stains and surfaces, it should be used with caution and according to the instructions provided by the manufacturer.
| Characteristics | Values |
|---|---|
| Effectiveness | CLR can be used to clean stainless steel, chrome, porcelain, aluminium, and cast iron pots and pans. It is also effective at removing tough stains from calcium, limescale, and surface rust. |
| Application | CLR should be applied to a clean, damp cloth, sponge, brush, or directly to the surface being cleaned. It can be used in diluted or undiluted form, depending on the severity of the stains. |
| Rinsing | After applying CLR, the surface should be rinsed thoroughly with cold water to neutralize and ensure no product residue remains. |
| Safety | CLR is safe to use on grass, shrubs, bushes, plants, and all types of flora. It is also septic safe. However, it should not be used on natural stones like marble, galvanized metals, or cast iron as it can compromise the material. |
| Usage Recommendations | CLR should not be left on a surface for longer than 2-3 minutes. It should not be used in coffee makers that hold water permanently or in espresso machines. |
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What You'll Learn
- CLR can be used to clean stainless steel pots and pans
- It can remove tough stains from calcium, limescale, and surface rust
- CLR is not suitable for cast iron pans as it can compromise the metal
- It can be used to clean coffee makers, but not those that hold water permanently
- CLR should not be used on natural stones, especially marble

CLR can be used to clean stainless steel pots and pans
CLR, or Calcium, Lime, and Rust Remover, is a household cleaning product used to dissolve and remove tough stains from surfaces. It is particularly effective on stainless steel pots and pans, bringing them back to looking brand new with very little effort.
To use CLR on stainless steel pots and pans, start by applying a small amount of the product to a clean, damp cloth or sponge. Briskly rub the product onto the surface you wish to clean, ensuring that you cover the entire area. You can also pour some CLR directly into the pot or pan, swishing it around to coat the bottom and sides.
For light stains and buildup, dilute one part CLR with eight parts warm water. For moderate stains, a 50/50 solution of CLR and warm water can be used. Always make sure to rinse the product thoroughly with cold water after use to neutralize any remaining chemicals.
While CLR is an effective cleaner for stainless steel, it is important to note that it should not be left on the surface for longer than two to three minutes. Additionally, CLR is not recommended for use on galvanized metals, natural stones, or cast iron, as it can compromise the integrity of these materials. Always refer to the manufacturer's instructions and perform a patch test on a small area before beginning to clean.
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It can remove tough stains from calcium, limescale, and surface rust
CLR can be used to remove tough stains from calcium, limescale, and surface rust. It is a powerful all-in-one cleaner that can dissolve and remove tough calcium and lime deposits. CLR Calcium, Lime, and Rust Remover can be used on surface rust stains from bathtubs, toilet bowls, sinks, glass, chrome, fiberglass, stainless steel, humidifiers, dishwashers, washing machines, and showerheads. It is recognized by the EPA as a safer alternative to traditional chemicals.
CLR is safe to use on metal filters, pots, and pans. It is recommended to pour enough CLR to cover the bottom of the pot or pan, add a 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 be used while the CLR is sitting on the stains.
CLR should not be used on brass, aluminum, or copper, as it can remove the finish. It should also not be used on any natural stone or marble, terrazzo, colored grout, painted, coated, sealed, or metallic glazed surfaces, plastics, laminates, Formica, Corian, galvanized metals, nickel, oil rubbed bronze, leaded crystal, refinished tubs, or any damaged or cracked surfaces.
When using CLR, it is important to follow the manufacturer's directions and safety precautions. It should not be left on a surface for longer than two minutes and should not be mixed with other household cleaners or bleach.
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CLR is not suitable for cast iron pans as it can compromise the metal
Calcium Limescale & Rust Remover, commonly known as CLR, is a household cleaning product used for dissolving tough stains from the buildup of calcium, limescale, and surface rust from hard water. It can be used on a variety of surfaces, including windows, showers, toilets, sinks, walls, and doors.
However, the manufacturer of CLR recommends against using the product on cast iron. This is because the acids in CLR will react with the clean metal, compromising it. As the rust is dissolved, the metal will pit, causing damage to the pan.
CLR is also not recommended for use on natural stones, marble, terrazzo, coloured grout, painted or metallic glazed surfaces, plastic laminates, Formica, aluminium, steam irons, leaded crystal, refinished tubs, or any damaged or cracked surfaces. The product is acidic and can corrode certain materials, including some types of plastic.
When using CLR, it is important to follow the manufacturer's instructions and take the necessary precautions. For example, for light stains and buildup, a diluted mixture of 1 part CLR to 8 parts warm water is recommended, followed by a rinse with cold water to neutralize. It should not be left on a surface for longer than two minutes and should always be rinsed off thoroughly after use.
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It can be used to clean coffee makers, but not those that hold water permanently
CLR (Calcium, Lime, and Rust Remover) is a household cleaning product used for dissolving tough stains, such as calcium, lime, and iron oxide deposits. It can be used to clean stainless steel pots and pans, as well as other surfaces like sinks, showers, toilets, and more.
When using CLR on pots and pans, it is recommended to apply the product to a clean, damp cloth, sponge, or brush, and then briskly rub it onto the surface to be cleaned. It should not be left on the surface for longer than two to three minutes. After that, the surface should be rinsed thoroughly with cold, clean water and dried.
While CLR can be used to clean coffee makers, it is important to note that it should not be used in coffee makers that hold water permanently. This includes espresso machines and certain brands like Gevalia, Keurig, or Cuisinart coffee makers. For single-cup coffee makers, use only one capful of CLR, and for 8-12 cup coffee makers, use one part CLR to eight parts water. Always make sure to rinse the coffee maker thoroughly with two full pots of cold, clean water after using CLR.
Additionally, CLR is not suitable for all surfaces. It should not be used on natural stones, marble, galvanized metals, cast iron, steam irons, steamers, or steam machines. It is also not recommended for removing oil or hard water stains. Always check with the manufacturer of the item you want to clean to ensure that CLR is safe and effective for that particular surface.
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CLR should not be used on natural stones, especially marble
CLR, or Calcium Limescale & Rust Remover, is a household cleaning product used for dissolving tough stains from the build-up of calcium, limescale, and surface rust from hard water. While CLR can be used on many surfaces, it is not recommended for use on natural stone or marble.
Natural stone, such as limestone, terrazzo, marble, slate, and some types of granite, is porous and soft. This means it can absorb liquids and cleaners, and CLR is no exception. If CLR is used on natural stone, it can seep into the stone and leave behind permanent stains or dull spots. The acid in CLR can also react with the stone, compromising its natural beauty. Even synthetic marble should be avoided as real marble dust is often used to give the effect of real marble.
If CLR is accidentally spilled on natural stone or marble, it is important to call a marble professional for further instructions. The affected area may need to be treated to prevent permanent damage.
In addition to natural stone and marble, there are several other surfaces that CLR should not be used on. These include brass, copper, wood, rubber, plastic, vinyl, coloured grout, painted or coated surfaces, galvanised metals, cast iron, steam irons, leaded crystal, refinished tubs, and any damaged or cracked surfaces. CLR can be too harsh for these types of surfaces, causing fading, streaking, discolouration, or other damage that may be impossible to fix.
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Frequently asked questions
Yes, CLR can be used on stainless steel pots and pans. It is recommended to apply CLR to a clean, damp cloth and briskly rub it onto the surface.
CLR should not be used on cast iron as the acids in CLR will react with the clean metal.
Pour enough CLR to cover the bottom of the pot or 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.
Some alternatives to CLR include lye, vinegar, and oxalic acid.
CLR should not be left on a surface for longer than two or three minutes. It should also not be used on natural stones, galvanized metals, or steam irons.










































