Prep first
Before you start
- Rinse a fresh splash with plenty of plain water.
- Pre-dissolve pool chemicals by adding the chemical to the water, never water to the chemical.
- Wear goggles and gloves and work in fresh air when handling pool chemicals.
A chlorine mark on plastic usually calls for a gentle touch rather than a strong product, and quick action matters more than strength. Plastic can take water and hot water with care, but it can't take abrasives or heat. That makes a soft cloth and mild soap the right tools, and it's worth checking the spot in daylight afterward.
Removing chlorine stains from plastic that has dried takes soak time, not more force. Try a little more mild soap in warm water and give the spot a few minutes before you wipe. Stop if the surface starts to look hazy, since that means you've pushed too hard.
Before you start
What plastic & tupperware can take
Safe to use1
- Water
Use with care2
- Hot water
- Solvents (alcohol, spot removers)
Avoid2
- Scrubbing and abrasives
- Heat, once the stain is out
6 items
What you'll need
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- Plain waterFor the first rinse and to clear the soap afterward.
- Mild dishwashing liquidThe only cleaner used in the wash. (opens Amazon)
- Soft clothWipes the plastic without scratching it. (opens Amazon)
- Plastic or nylon scrub padOnly for light scrubbing if a wipe isn't enough. (opens Amazon)
- GogglesFor handling pool chemicals safely. (opens Amazon)
- Gloves (opens Amazon)
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5 steps
Step by step
Step 1 of 5
Rinse the spot with plain water
Start by flushing the spot with plenty of plain water while the chlorine is still fresh. Keep rinsing until the area feels clean and no pool smell or film remains.
Do this before any soap or cloth touches the plastic.
Tip. Hold the item under a gentle stream so the water carries the chlorine away instead of spreading it.
Step 2 of 5
Wipe with mild soap and warm water
Dip a soft cloth in warm water with mild dishwashing liquid added, then wipe the spot in light, even strokes. Work from the outer edge toward the middle so the mark doesn't spread.
Keep wiping until the cloth stops picking up residue.
Step 3 of 5
Scrub only if the spot remains
If the mark is still visible after a wipe, scrub gently with a plastic or nylon pad. Use light, even pressure and keep the scrubbing limited to the spot itself.
Tip. Test the pad on a hidden part of the item first.
Step 4 of 5
Rinse off the soap and dry
Rinse the whole item with clean water so no soap film is left behind. Dry it with a soft cloth, since a leftover film can look like a mark.
Step 5 of 5
Check the spot in daylight
Look at the plastic in good light from a few angles before deciding the job is done. If a faint mark remains, the set-in section below explains what's realistic and what to avoid.
If you'd rather buy than mix
Best products for chlorine on plastic & tupperware
Choose a plain mild dishwashing liquid with no added bleach, and keep a soft cloth or a plastic or nylon pad on hand for light scrubbing.
Amazon Basics Microfiber Cleaning Cloths
How we picked these: each product is made for this type of stain, its maker doesn't warn against using it on plastic & tupperware, and its directions fit the steps above.
Finished the steps? How does it look?
Nice work. Let it dry completely and check it again in good light. Here is what done looks like:
How to tell it's really gone →A faint mark usually needs one more round, not a stronger product.
Heavy buildup usually takes more than one round.
Heavy or long-standing buildup →When to call a professional →How to tell it's working
A clean spot looks even in daylight, with no dull patch or bright ring where the chlorine was. The plastic should feel smooth rather than slick once it's rinsed. If it still feels slippery or looks cloudy, rinse again with plain water until the soap is gone.
What changes for yours
Adjust for your plastic & tupperware
Phone cases
Remove the phone first, then wipe the case with a soft, slightly damp, lint-free cloth. Silicone cases need the same gentle care, so keep window cleaners, household cleaners, aerosol sprays, solvents, ammonia and abrasives away from them.
If the mark doesn't lift with the damp cloth, use the mild dishwashing liquid wash on the case only. Dry the case fully before the phone goes back in.
Eyeglass lenses
Brush off any dust first so it doesn't drag across the lens as you clean. Then clean with a lens wipe in circular movements, and don't use a tissue, tie or sleeve.
If the lenses are plastic, keep the wiping light and let the lens wipe do the work instead of pressing harder.
Food containers and lids
Wash by hand in hot soapy water, or on the dishwasher's top rack if the product says it's allowed. Dry the lid and container fully so no soapy film stays in the seal.
Tomato and acidic sauces can stain plastic lids, and high-fat foods, sugar and oils can cause staining and blistering when overheated in plastic. Avoid overheating those foods in the container.
Plastic toilet seats
Clean with mild soap and warm water, using a soft cloth. Keep nail polish, aftershave and abrasive chemicals off the seat, since they damage the finish.
If the mark came from pool water, rinse first, then do the gentle wipe. Dry the seat with a soft cloth when you're done.
Acrylic sheets
Use the same plain water rinse and mild dishwashing liquid wash on acrylic, with a soft cloth. Keep solvents and abrasive cleansers away from the surface, since acrylic can't take either.
If the mark won't lift, stop there and don't try a stronger product on it. That keeps the surface from taking more damage.
Heavy or long-standing buildup
An old mark that has been on plastic for a while is harder to lift, because the steps above work best on a spot you can still rinse and wipe. Start over with the same plain water rinse and mild dishwashing liquid wash, and repeat it until nothing more comes off on the cloth.
A dried-on mark is the harder case, since it has had more time to set. Rewet the spot with warm water, wipe with the mild dishwashing liquid, and scrub only with a plastic or nylon pad if the cloth alone doesn't work.
If the mark is still there after repeated wipes, it may be permanent, since lost color often is. Don't reach for heat, abrasives or stronger chemicals to force it out, because plastic can't take them. Stopping at the gentle limit is the safest and most realistic choice.
Vinegar, baking soda, peroxide and more
Do home remedies work on chlorine on plastic & tupperware?
Plastic can't take most home fixes for pool stains, so the mild dishwashing liquid wash is the one to rely on. Every other common remedy is best skipped on plastic.
Works1Skip5
What makes it worse
Mistakes to avoid
Don't mix pool chemicals with anything
Never mix pool chemicals with each other or with any other product, and never add acid or vinegar to chlorine, since toxic gas can form. Ammonia is also off limits near chlorine bleach, so don't try to neutralize a spot by adding either one.
Don't use abrasive cleansers or scrub pads
Abrasives leave their own marks on plastic, so they can make a clean spot look worse. If you need to scrub at all, use only a plastic or nylon pad.
Don't use metal spoons or containers with bleach
Keep bleach products away from metal spoons and metal containers. Use plastic tools instead when you handle them.
Don't put plastic on or under a flame
Plastic lids and containers should never go on or under a flame, stovetop or broiler, since they can't take that heat. Keep them clear of any direct heat source while you clean.
Don't leave glasses in a hot car
Extreme heat such as a hot car is a risk for glasses, so keep them somewhere cool. This applies after cleaning too.
When to call a professional
If the mark stays after a gentle wash and rinse, stop there and don't escalate with stronger products. For glasses, the optician who fitted them is the right person to ask about lens damage.
Questions
Can chlorine take the color out of plastic?
It can, since a chlorine mark is usually color that has been taken away rather than something added. Lost color is often permanent, so the fastest fix is a quick rinse and a gentle wash.
Why does plastic near a pool or sink turn blue-green?
That's usually dissolved copper from corrosive water attacking copper plumbing, not chlorine, so a chlorine wash won't clear it. Blue-green marks around a sink are a different problem, so use the sinks guide to deal with them.
Does plastic need a special cleaner?
No. Mild dishwashing liquid in warm water covers the steps, and a soft cloth does most of the work. Skip anything marketed as a harsh stain remover, since plastic can't take abrasives or strong chemicals.
Will a rinse alone remove the mark?
Sometimes, especially if the mark is fresh and hasn't dried. The rinse is the first step because it moves the chlorine off before it has time to set.
Can I remove a mark that has been set in?
Often only partly. There's no stronger method here for set-in marks on plastic, so repeat the gentle wash and stop there rather than reaching for heat or harsh chemicals.
Can I microwave a plastic container once it's clean?
Yes, if the lid is vented or offset so it isn't sealed. Sealed lids can warp, so always vent or offset them before heating.
Can I use hydrogen peroxide on a chlorine stain?
No. After a rinse with plenty of plain water, wipe the spot with mild dishwashing liquid and warm water; skip peroxide, since this plastic needs only that wash and a soft cloth.
Chlorine on other materials
Other stains on plastic & tupperware
Start from the bigger picture
How we know this
Every method, amount and warning here comes from university extension services, industry bodies and product makers. We read them, check every step for unsafe combinations and changed amounts, and write it up so you can follow it.