Does CLR Really Work?

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Does CLR work?Calcium, Lime, and Rust, that’s what CLR is supposed to remove easily from all types of surfaces. At least that’s what they say in their ubiquitous TV spots. At this point, it’s been put to the test in thousands of homes across the country, so the reviews are in, and we can make a determination on whether it actually works or not.








What Can You Use CLR For?

CLR is a very powerful formula that is manufactured to easily and quickly dissolve and remove stubborn lime, calcium, and rust surface stains. This product works well in the bathroom on toilet bowls, bathtubs, glass shower doors, and stainless steel faucets and shower heads. It can be used in the kitchen on many coffee makers, dishwashers, stainless steel sinks, and facets. Use it in your washing machine to remove hard water calcium build up. The use of CLR is septic safe as it contains no phosphates. Other surfaces CLR can be used on are:

    • Porcelain
    • Chrome
    • Stucco
    • Fiberglass
    • cement
    • ceramic
    • glass
    • brick
    • Plastic

Here are Some How To’s for the CLR Product

How Do I Clean My Shower Head?


Over time, minerals from hard water can build up in your shower head and cause clogged spouts, reducing the water flow. This can be very annoying.

To clean your shower head with CLR simply remove the showerhead, submerge it in a 50/50 mix of CLR and water, wait 2 minutes and rinse thoroughly with cold water.

Reinstall your showerhead. This product works quickly to dissolve these mineral build-ups, which increases proper flow of water through your showerhead.


How Do I Clean My Bathtub with CLR?


CLR is an amazing product for cleaning bathtub dirt, grime, and water mineral deposits. It is very easy to use. Always make sure you wear gloves when handling this product. Follow these simple steps for a clean, stain-free tub:

  • remove all items from the tub and surrounding tub area
  • Spray CLR directly onto the tub surface
  • Let the product sit on the tub for no longer than 2 min.
  • Simply wipe the tub surface with a clean damp cloth or sponge
  • Rinse the tub well with cold water

For stubborn stains, you may have to repeat this process, however using CLR on a regular basis will prevent stain build up.

How Do I Clean My Coffee Maker With CLR?

Coffee Maker

Mineral deposits and calcium buildup from tap water can greatly affect the way your coffee maker works for you.

To keep your coffee maker working well and adding longevity to it, it is recommended that you clean it regularly with CLR. However, this product should not be used on coffee machines that permanently hold water like Keurig Machines.

For a regular 8-12 cup coffee machine follow these instructions:

  • For every 8 cups of water, mix one cup of CLR
  • Run this mixture through your coffee machine
  • Dispose of the water/CLR mixture once it has run through the coffee maker
  • Run a complete cycle through your coffee machine using fresh cold water two times
  • Your coffee machine is now ready to use.

Remember to never use CLR in espresso machines.

These are just a few simple ways you can remove calcium, mineral, and rust from household items. There are many other uses for this product.

Is This Product Good For Outdoor Use?

garden tools

Many outdoor items may become rusty due to weather conditions and changes. CLR is a great product for removing rust from many metal surfaces. Allowing rust to remain on metal items can cause the metal to corrode and deteriorate. This is why it is important to remove rust when you first notice it. This product can be used on metal garden tools, metal arbors, outdoor metal furniture, and works great to clean hose nozzles.

What CLR Products are Available?

There are several CLR products on the market. Some are for specific areas of use such as CLR Bath and Kitchen and CLR Stainless Steel. The CLR, Calcium, Lime, and Rust Remover can be used on many surfaces and household appliances. Other CLR products available are:

  • CLR Mold & Mildew Stain Remover
  • CLR Power Plumber
  • CLR Grease Magnet
  • CLR Outdoor Furniture Cleaner
  • CLR Metal Clear
  • CLR Septic System Treatment

There is a CLR product available to make your household cleaning jobs much easier.

How Much Does CLR Cost?

CLR product prices vary depending on the size and the specific product you choose to purchase. These products are available at many store locations and also online.

Amazon’s pricing ranges from $7.17 to $50.16, depending on the size. Amazon also offers package deals, so the more you buy, the better the price will be.

Customer Reviews


Many of Amazon’s CLR customers have rated this product between 4 and 5 stars out of 5 stars. This is a good rating for a product. Choosing to read customer reviews prior to making a purchase can help you decide if this is the kind of product you are looking for.

Special Notes About CLR


As with many cleaning products you should never use CLR with any other products, especially if they contain bleach or ammonia.


  • Always wear protective gloves when handling this product even though it is a non-toxic product.
  • CLR is a powerful, safer cleaning product alternative to chemicals.
  • This product is safe to use around children and pets.
  • When using this product full strength, do not leave on any surface longer than 2 minutes.
  • If you dilute this product, it can be left on a surface a little longer.

Our Recommendation to You

If you are looking for a multi-purpose household cleaning product, CLR is worth trying.

Read some customer reviews to determine what this product works best on and if it will meet your needs.

You may want to consider purchasing the smaller size bottle to try it out before investing in a large quantity of the product.

If you are happy with this product, you should share your findings with family members and friends to make their cleaning jobs as easy as yours.

Be sure to tell your friends and family to check out what we had to say here about CLR.

50 Customer Reviews on “Does CLR Really Work?

  1. I used CLR on my tube fixtures and it turned them black. I had to get a plumber to come and change them out. It still did not remove the rust spot.

  2. I purchased an old topless ammo can of ammunition reloading dies in a rusted, dirty and dismal state. They were unusable in their condition so my wife suggested I try CLR. I placed them several at a time into a tub with a lid and allowed them to sit submerged for 24 hrs. The rust and crud was gone inside and out. Some of the carbon dies appeared to take on a darker hue almost like bluing agent was applied but were otherwise unharmed. It worked GREAT for cleaning the rust off those old dies enough that I put them back into service. Dies have very close tolerances needed to reload live ammo and the CLR didn’t damage anything. Today I was looking into the idea of pouring CLR down a rifle barrel to dissolve lead, rust and crud from the bore and I happened across this post.

  3. Muratic acid works wonders. . But be careful with it. It hurts skin and eats metal.

  4. I’ve tried the stuff a couple of times over the years. It works about as well as using plain water. Not at all.

  5. I can’t believe this is nearly 3 times the price even accounting for 20% VAT, when given that GST would lower it down to a differential of from 0-8%. We just get ripped off for everything in England!

  6. Thanks for that. I did think it would containing certain chemicals detrimental to stripping the Enamel, and and it may be problematic in an old house, where we have copper /lead and brass fittings. I watched a few mechanics who used this and swore blind to it, on youtube to flush cooling systems. However, I note many are brass, plastic, and ceramic. It may cause more problems than it solves.

  7. My wife purchased CLR for me to use at the hunting camp. We have well water with a lot of iron in it, leaving rust stains in sinks and toilets. This product is useless and totally ineffective, does not work at all. Tried diluted and full strength to No avail – Don’t waste your money.

  8. I’m surprised at all the negative comments. I’ve used it for years. This is the only product I’ve found that will loosen the mineral ring build up in the bathtub. After applying, very little elbow grease is needed to remove the remainder, it comes off easy. then. I also just tried it on the wood stove glass, which had a burned on, thick, orange and black film. It’s perfectly clear after two short rounds of one minute each, followed by an easy scrape with a razor tool. This is the first time I’ve ever seen through the glass. I spill it on my hands and nothing happens, not corrosive. According to the label, it’s safe for septic tanks and is phosphate free.

  9. When I first starting using CLR it worked great. I would put some in a plastic bag and then zip tie the bag around the shower head. You could see the bubbles as it reacted with the lime scale. A couple of hours later the lime scale was gone and the showerhead worked like new.
    Now there are little or no bubbles and doesn’t seem to work like it used to. Ran across this thread looking to see if anyone else had noticed this. Looks like I’m not the only one.
    So, what is everyone else using as a substitute?

  10. I saw the commercial for CLR and got very excited because we have a lot of rust in our water which caused orange stains in the toilet, tub and sink. However even though I followed the directions and scrubbed and scrubbed, it did nothing to remove the stains. I might as well just used plain water and saved my money. It’s a totally useless product!

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