Viewing entries posted in 2011

Bleach and Slipcovers

Q:  Can I use Clorox® Regular-Bleach on a slipcover that’s not solid white? I don’t mind if the bleach lightens the fabric, it’s just so soiled that I want it brighter.

A:  If the slipcover is cotton or cotton/polyester, then you can wash it with Clorox Regular-Bleach.  Here are some other considerations for how you can proceed.

1.  Wash in hot water using a good detergent and ¾ cup Clorox® Regular-Bleach.

2.  If the slipcover is very dirty, start by soaking the entire slipcover (and any cushion covers) fully submerged in a bleach solution of ¼ cup Clorox® Regular-Bleach per gallon of water for 5 minutes.  Drain the soaking solution and then wash as described above.

3.  Avoid shrinkage—keep it out of the dryer.  Instead, put it back on the couch before it dries.  This is especially important for cushion covers, which need to be stretched over the cushions while still damp or they won’t fit back on again.

4.  If the slipcover is made of nylon or rayon, I would still expect it to be bleachable, but I would confirm this first with a bleachability test:  add 2 teaspoons bleach to ¼ cup water and apply a drop of this solution to a less-visible part of the slipcover.  Wait 1 minute and then blot dry—any color change will give you an idea what to expect if you bleach it.  In fact you may even want to do this if the slip cover is made of cotton, and you may also want to check any topstitching thread to see if that will shift color when bleached.

5.  If you decide you don’t want to use bleach on the slipcover, then I would try an overnight pre-soak using Powdered Clorox2® Stain Fighter & Color Booster.  Use 1 scoop per 2 gallons of very hot water—make sure the powder has completely dissolved and then add the slip cover to the soaking solution.  Make sure it is fully submerged (weight it down if you need to) and let it sit overnight or up to 8 hours.  Drain the soaking solution and then wash in hot water using detergent and more Clorox2®.  Air dry as described above.

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Shelf Life & Odor

Q:  My Clorox® Regular-Bleach has lost its odor, what is the shelf life of bleach?

A:  It’s important to keep track of how old your bleach is because yes, bleach doesn’t last forever!  When Clorox® Regular-Bleach is stored between 50°F and 70F° and away from sunlight, it will maintain label strength of the sodium hypochlorite active for up to 6 months (at this point hospitals should replace it).  After 6 months it starts breaking down into salt and water, but will still perform well for home consumer cleaning needs for up to a year.  Since it’s always diluted before use, you can just use a little more.  Beyond a year, it should be replaced because the rate of decomposition into salt and water really speeds up, a big part of why it’s so environmentally friendly.

The best way to identify the age of a bottle (people don’t always remember when they bought it!) is to use the production code stamped on the neck of the bottle, which typically looks like this:

A8116010

5813-CA3

The information on when the bleach was made is in the top line, which would be A8-1-160-10 if you added dashes.  You only need the first 6 digits and you read it from left to right as follows:

Plant Number—Last digit of year made—Day of the year made

         A8                              1                                   160

The bleach in this example was made in 2011 on June 9th, the 160th day of the year.

Readers – have you checked the date of your bleach recently?

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Ammonia and Bleach

Q:  I regularly use ammonia in my laundry, but when the whites won't come clean I use bleach.  Should I be worried about the ammonia and bleach interacting?

A:  Bleach and ammonia should NEVER be mixed since when the two combine, toxic gas is formed that could be fatal.  And it’s not just ammonia or products containing ammonia (like window cleaner) that can be a problem.  Therefore, as a general rule, bleach should not be mixed with other household cleaners such as toilet bowl cleaners, rust removers, and acids (vinegar, for example) since toxic gas can also form.

Washing your whites in hot water using a good detergent + ¾ cup Clorox® Regular-Bleach will give you excellent cleaning and whitening—definitely don’t add any ammonia!  For your other loads, you may want to try using Clorox2® Stain Fighter & Color Booster along with your regular detergent to give you improved cleaning and brightening.  Then you wouldn’t need to worry about ammonia carrying over into other loads – otherwise you should be running a clean out cycle after washing a load that contains ammonia.  Finally, take a look at how you are storing your ammonia and your bleach, and make they are kept apart so they can't combine together (for instance being knocked to the floor during an earthquake).

Have any readers switched from using ammonia to bleach and seen greater success?

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Bleach on Hardwood Floors

Q:  Is it safe to use Clorox® Regular-Bleach on finished hardwood floors?

A:  Generally, Clorox® Regular-Bleach is suitable for disinfecting floors made of hard surfaces like ceramic tile, vinyl, and linoleum—not marble or other porous surfaces that aren’t safe for bleach.  Wood is porous, and generally we only recommend bleaching exterior finished wood surfaces, not interior hardwood floors.   Finish composition, quality, and the age of the floor vary from home to home making a general positive recommendation difficult to give.  Depending on your situation, a one-time only bleach treatment might be OK.  You would need to test a less-visible section of the floor first so you know how the treatment will affect the floor.

Another important clarification is that Clorox® Regular-Bleach should always be diluted when used; we never recommend using it full strength for cleaning any hard surface or fabric!  Here’s how you properly dilute it for disinfecting floors that are safe for bleach:


  • Mix up a solution of ¾ cup bleach added to 1 gallon of water

  • Wipe or wash the floor, and then apply the bleach solution, letting it stand for 5 minutes

  • Rinse well and air dry


If you test a small section of the floor first and decide you can safely proceed, then a good technique is to work in smaller sections to be sure you can manage rinsing quickly and efficiently.  Be sure the area is well ventilated while you are working.  Also, keeping kids or pets away from the area you are working in is also a good idea until the “air dry” step is complete.  

Do any of my readers have need to bleach their hardwood floors?  I’d be curious to know the reasons why.

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Stained Work Pants and Jeans

Q:  I have a job where I get dirty. I wear jeans and Dickies® work pants. They get really dirty. I can't get the stains off them with just detergent. And when it comes to bleach, I've only used it on whites. Don't know if I can use it on my work pants. I have grey, tan, dark blue and black work pants not including my blue jeans.

A: Your blue jeans may be able to be safely bleached, with some slight fading over time.  There's a really good chance your Dickies® work pants can be safely bleached, but you will need to check first with a simple bleachability test (check your blue jeans, too).  Add 2 teaspoons Clorox® Regular-Bleach to 1/4 cup water and apply a drop of this solution to a hidden part of the work pants like the inside hem.  Wait 1 minute and then blot dry.  No color change means the pants can be safely bleached.  Assuming they pass, wash them in hot water using detergent + 3/4 cup bleach.  Air drying takes longer, but will preserve the dark blue and black colors, since the heat from the dryer can contribute to fading.

If the pants don't pass the bleach test (or you don't want faded blue jeans), then I would use powdered Clorox2® Stain Fighter & Color Booster as a pre-soak.  This works really well to combat heavy soil.  To do this, add a scoop of the powder to 2 gallons of very hot water and stir to dissolve.  Fully submerge the pants for up to 8 hours or overnight.  In the morning, drain the soaking solution, and then wash the pants in hot water with detergent and more Clorox2®.  Again, air dry and check for success.

Something else to consider is whether or not the heavy soil you need to remove includes an oily component. In that case, you might end up with incomplete stain removal, and so adding in a pre-treating step following the pre-soak would be helpful. Apply a little liquid Clorox2® directly to any stains, wait 3-5 minutes, and then wash.  Really dirty clothes do take a lot of work to get clean, but pre-soaking and pre-treating work well to improve results.

Does anyone else have work related stains that are difficult to remove?

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Hepatitis A

Q:  Will using a Clorox ® Regular-Bleach solution destroy the hepatitis A virus on toilet seats?

A: Yes, you can disinfect hard non-porous surfaces (like a plastic toilet seat) with a Clorox Regular-Bleach disinfecting solution as follows:


  • Add 3/4 cup bleach to 1 gallon water.

  • Wipe the surface clean, and then apply the disinfecting solution.

  • Allow it to contact the surface for 5 minutes, and then thoroughly rinse.

  • Air dry.


Something else to be aware of is that when bleach is stored in a cool dry place away from direct sunlight, it maintains label strength of the active for up to 6 months before starting to slowly break down into salt and water.  It will still provide good performance for laundry and home cleaning uses, but after a year the break-down speeds up, so at that point it should be replaced.  For your purpose of wanting to kill Hep A, I would make sure your bottle is less than 6 months old.  Also, the bleach solution needs to be made fresh daily, or at least on the day you plan to use it.  The ability for bleach to break down into salt and water is a big part of what makes it so environmentally friendly.

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Bleaching a White Coat

Q: My white coat has a pink hue on it – can I safely bleach it?

A:  It is important to know the material of your coat – if it's wool, silk, leather, mohair or spandex, then you don't want to bleach it, and should take it to a dry cleaner.  Cotton, poly-cotton, and polyester can be bleached, and you could try a bleach soaking solution to remove the pink hue.  Fully submerge the coat in 1/4 cup Clorox Regular-Bleach per gallon of water for 5 minutes.  Drain the soaking solution and then wash in warm water with detergent + 3/4 cup Clorox Regular-Bleach.  Air dry and check for success.  Hopefully the pink color will be gone, but if any remains then I would try RIT® Color Remover; just be sure to follow the package instructions.

Something else to watch out for is if the coat is down-filled.  In that case, it also shouldn't be bleached.

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Hand Washing White Gloves

Q: I have large brown stains on my white cotton gloves that are hand wash only. I believe the stains are from my moisturizer combining with dirt when wearing the gloves both indoors and out, running errands (i.e. from touching stair rails, items in stores, etc.).

A:  First check to make sure your gloves can be safely washed with bleach – you should never bleach wool, silk, mohair, leather, or spandex.  This is especially important since some cotton gloves can be blended with spandex.  You are correct in your assumption that the stains are being caused by your moisturizer.  It sounds like a small amount is transferring from your hands to the gloves and building up overtime.  It has an oily component, which will help attract dirt from the various surfaces you touch, and make stains much more difficult to remove.

If your gloves can be safely bleached, I recommend fully submerging them in 1/4 cup Clorox Regular-Bleach per gallon of water for 5 minutes.  Drain the soaking solution and then wash in warm water with detergent + 3/4 cup Clorox Regular-Bleach.  Air dry and check for success. 

If your gloves can’t be bleached you can pre-soak the gloves before hand washing them:  add a capful of Clorox2® Stain Fighter & Color Booster to 2 gallons of water and fully submerge the gloves for an hour, then wash.  Again, this assumes the gloves can be safely washed.

Does anyone else have stains on their gloves that they are trying to remove?

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Water Color Change with Bleach

Q: Why does adding Clorox ® Regular-Bleach turn my water pink, and also stain my white items brown? This especially happens when I add detergent (All® HE).  Our water has silica, but that is it.  Could it be the pipes (PVC and copper)?

A: It sounds to me like your water has high iron content - have you ever had it tested by a laboratory?  The pink color you are reporting is typically seen when bleach oxidizes the iron, giving the water a pink hue and causing the brown spots which are actually rust deposits.  Installing a water treatment system is usually the best way to get these problems under control.  If you determine that your water doesn't have any iron in it, then it would be good to check your clothes washer for any corroded areas that have rusted. These could be transferring rust into the wash water and onto your clothes.  Until you identify and correct the source of the iron/rust, using bleach will only exacerbate the problem.

Has anyone else experienced similar problems due to high iron content?

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Regular Bleach Usage on Fabric

Q: Does regular use of bleach damage the fabric?

A:  Fabrics naturally deteriorate just from wearing, washing, and drying; using bleach doesn’t accelerate this effect.  We have examined this extensively, evaluating a wide variety of white items commonly bleached:  socks, underwear, t-shirts, towels, bed sheets, dress shirts, and even baseball pants.  Items were washed and dried 50 times, and we found no significant difference in fabric strength between items washed with detergent and those washed in detergent and bleach.  So as long as your whites are safe for bleach (always avoid bleaching wool, silk, mohair, leather and spandex, even if they are white) you can use Clorox® Regular-Bleach in every load for the cleanest, whitest whites.

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