First few minutes
Just happened? Do this first
- Remove any pulp, then rinse fresh juice with cool water.
- Don't use soap; it sets fruit stains.
- Blot, don't rub.
Watermelon juice on plastic is a tannin-type fruit stain, and soap will set it rather than lift it. Fresh marks are much easier to clear than old ones, and some juice marks only show up later, so check in good light. Plastic can't take scrubbing or heat, so every step stays gentle.
Watermelon stains in plastic food containers take patience, so keep each try gentle and let the cleaner do the work. A watermelon stain on a plastic cutting board or lid may need a different approach, so test a small area first. If it still shows after several gentle tries, stop rather than scrubbing harder, since that only scratches plastic.
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
4 items
What you'll need
Tap an item to get it on Amazon, or tick what you already have.
- Clear waterRinses the juice out and clears each product before the next one.
- Soft cloth or spongeLifts the juice without scrubbing. (opens Amazon)
- White vinegarMixed with water for the soak; colored vinegar can leave a stain. (opens Amazon)
- Chlorine bleachThe last product, for any mark still left after everything is rinsed. (opens Amazon)
As an Amazon Associate we earn from qualifying purchases.
5 steps
Step by step
Step 1 of 5
Wipe up the excess juice
Remove any pulp first, then wipe up the spill with a dry cloth. Blot rather than rub, so the juice doesn't spread across the plastic.
Step 2 of 5
Sponge the area with clear water
Dampen a cloth or sponge with clear water and sponge the spot until no more juice comes off. Rinse the cloth often so you aren't spreading the color around.
Careful. Keep to clear water; soap sets fruit stains, so no dish soap at this stage.
Step 3 of 51 minute
Apply the vinegar solution
Mix equal parts white vinegar and water, apply it to the stain, and let it stand for 1 minute. This is the main treatment for fresh juice, and it's gentle on the surface.
Tip. Use white vinegar only; colored vinegar can leave a stain.
Step 4 of 5
Rinse and check the spot
Rinse with clear water once more. If the stain is gone, stop here, since bleach is only for what's left.
Step 5 of 51 minute
Finish with chlorine bleach
Only once everything is rinsed out, apply chlorine bleach directly to any mark that's left and let it stand for 1 minute. Rinse thoroughly with clear water until no bleach remains on the plastic.
Careful. Never let bleach meet vinegar; rinse everything out first.
If you'd rather buy than mix
Best products for fruit on plastic & tupperware
Choose plain white vinegar rather than a colored one, since colored vinegar can leave its own mark. If you buy a bleach for the last trace, check the label says it's safe on plastic.
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.
If the stain was already dried or set, the method changes.
Old, dried or set-in stains →When to call a professional →How to tell it's working
The spot should look gone or nearly gone, with no color left on the plastic. If a faint shadow remains after the bleach and rinse, treat it as a set-in stain and use the repeats described below.
What changes for yours
Adjust for your plastic & tupperware
Plastic food containers
The same steps work for the container and its lid, but treat each piece on its own so the juice doesn't move from one to the other. Give extra attention to the seal and corners, where juice tends to collect.
Let it air dry once the stain is gone, and use the repeats in the set-in section if a faint mark remains.
Plastic cutting board
The same steps apply, but knife grooves hold juice, so work the damp cloth into them rather than across the flat surface. Rinse thoroughly, because juice left in a groove keeps the mark visible.
After the final rinse, stand the board on its edge to air dry. Check the grooves once it's dry before you put it away.
Plastic lids
Lids take the same steps as the container they belong to, but work the rim and underside as separate areas so the juice doesn't spread between them. Pay close attention to the groove where the seal sits, since juice tends to hide there.
Dry the lid completely before you snap it back on, so no moisture is trapped under a faint mark.
Plastic laminate countertop
Work from the edge inward so the juice doesn't spread onto clean laminate. Laminate takes the same steps, with the vinegar soak doing most of the work on stubborn spots. Wipe up any juice that runs over the edge before it dries.
For countertops in general, including stone and other surfaces, see the Countertops guide.
Old, dried or set-in stains
An old watermelon stain that has sat for a while is harder than a fresh one, so expect more repeats. Start by repeating the vinegar step and rinsing it out fully.
If the juice has dried, give it one more vinegar round before anything else, then rinse. Bleach still goes last, once everything is rinsed out.
A faint shadow may stay after several rounds, and it's better to accept that than to scrub harder or apply heat. Plastic doesn't take the stronger treatments fabric can, so stop once the repeats stop helping.
Vinegar, baking soda, peroxide and more
Do home remedies work on fruit on plastic & tupperware?
Several home remedies get suggested for fruit stains, but only a few suit plastic. Each of these has a clear limit on plastic, and most aren't needed.
Works1Skip3Avoid2
Chemical safety
Never mix these
Some products in this guide react dangerously with each other. Use them one at a time and rinse with water in between.
Chlorine bleach + Vinegar
Vinegar is an acid, and acid mixed with bleach gives off toxic chlorine gas.
If they mix by accident: Stop and add nothing else; leave the area for fresh air, open windows and keep children and pets away; call Poison Control at 1-800-222-1222, or 911 if anyone has trouble breathing.
What makes it worse
Mistakes to avoid
Don't scrub the spot
Stubborn spots come up with repeats, not force. Scrubbing harder won't lift them and can damage the surface.
Don't heat the plastic
Keep lids and containers away from any flame, stovetop, broiler or oven, since heat can damage them. Vent or offset the lid before microwaving so it doesn't warp.
Don't let the juice dry
Old stains are harder to remove than fresh ones, so rinse as soon as you see the juice. A stain that has dried gets the repeats above, not a stronger product.
When to call a professional
If the mark stays after the repeats and the piece matters to you, stop there rather than trying harder products. Replacing the container or board is often the simpler fix.
Questions
Does Watermelon Stain Plastic?
Yes, watermelon juice is a fruit juice, and it can leave a mark on plastic. Some juice stains are hard to see until later, so check the surface once it's dry.
Why does the juice mark plastic at all?
Fruit juice carries a tannin-type color that clings to the surface and shows up as it dries. Rinsing it promptly keeps it from setting, so the earlier you act, the better.
Can I leave watermelon juice in a plastic container overnight?
It's better not to. Old stains are harder to remove than fresh ones, so treat the container as soon as you can. If it has already sat, follow the repeats in the set-in section.
Will bleach remove watermelon from plastic?
Bleach is the final step here, used on whatever is left after the rinses. It isn't a first try, so work through the earlier steps first.
How do I know the stain is gone?
Check the surface in good light once it's dry, since some juice stains are hard to see until later. If you can still see a faint mark, repeat the steps once before deciding it's set.
Does juice in knife grooves leave a mark?
It can, because juice collects in knife grooves and is easy to miss. Check the grooves after the first round, and repeat the steps there if needed.
Is white vinegar safe on plastic?
Yes, in equal parts with water, and white vinegar only. Rinse it off fully afterward, so nothing is left on the plastic before the bleach step.
Fruit 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.