
Red stains on plastic containers can be unsightly and off-putting, especially when it's time to eat. The good news is that there are several ways to remove these stains and restore your plastic containers to their former glory. Some common household items that can be used include baking soda, vinegar, lemon juice, and even sunlight. For more stubborn stains, bleach is a powerful option, but it should be handled with care and rinsed thoroughly. So, whether it's a fresh stain or a long-standing one, there are plenty of methods to try to get your plastic containers looking as good as new.
| Characteristics | Values |
|---|---|
| Cleaning agent | Dish soap, dishwasher powder, vinegar, bleach, baking soda, lemon juice, denture tablets, rubbing alcohol, hand sanitizer |
| Additional tools | Paper towel, scouring pad, toothbrush, sponge, damp cloth |
| Steps | Rinse, soak, scrub, shake, wipe, dry |
| Time | 15 minutes to overnight |
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What You'll Learn

Soak in a bleach solution
Red stains on plastic containers are often the result of tomato-based sauces being heated in the microwave and getting baked into the plastic. While some people may be inclined to throw away stained containers, there are ways to remove these blemishes and restore the plastic to its former glory. One method is to soak the container in a bleach solution.
Chlorine bleach is a powerful cleaning agent that can remove liquid stains such as coffee, soda, juice, tea, ink, and tomato stains. To make a bleach solution, mix one tablespoon of bleach with one cup of water. You can also add one tablespoon of vinegar to this mixture as an alternative to bleach. Place the stained container in a larger container and pour the solution into it, allowing the plastic to soak for at least one to two hours.
After soaking, the stain should be gone, and you can wash the container with hot, soapy water and let it air dry. It is important to thoroughly wash the container after using bleach to ensure no harmful chemicals remain. While bleach is a powerful cleaning agent, it is not recommended for use on food containers by some due to the porous nature of plastic.
If you are concerned about using bleach, there are alternative methods to remove red stains from plastic containers. One option is to use vinegar, which can be just as effective as bleach and is a natural, food-safe substance. Another option is to use baking soda, which can be mixed with water to form a paste that can be applied directly to the stained areas.
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Use vinegar and water
Vinegar is an excellent natural alternative to chlorine bleach for removing red stains from plastic containers. It is food-safe and will not harm the plastic. In fact, the vinegar smell will disappear after the container dries.
To use vinegar and water to remove red stains from a plastic container, start by making a solution of water and vinegar. The recommended ratio is 1 tablespoon of vinegar per 1 cup of water. Pour this solution into the stained container and let it soak for 1 to 2 hours. You can also let it sit for up to 3 hours for better results.
After soaking, simply dump out the vinegar solution, wash the container, and dry it. If you are concerned about the vinegar smell lingering, don't worry! The smell will disappear once the container is dry.
This method is a great way to remove red stains from plastic containers without using harsh chemicals. It is safe, effective, and easy to do with household ingredients.
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Baking soda paste
Baking soda is a natural ingredient that is a gentle abrasive, helping to loosen stains and odors. To make a baking soda paste, add a couple of tablespoons of baking soda to the plastic container, then add just enough warm water to form a paste. The paste should be just a tiny bit thinner than toothpaste; you want it to spread easily but not be runny.
Spread the paste over the bottom and sides of the container, ensuring that you cover all the stained areas. Let the paste sit for 20 to 30 minutes. After this, wipe the paste around with a damp cloth, rubbing it into the bottom of the container well. Then, rinse the container with dish soap and warm water.
If the baking soda removes the stain but not the food odors, crumple up some newspaper and gently pack it into the container. Seal the container with the lid and let it sit for 1-2 days. Then, discard the newspaper and wash the container with hot soapy water.
You can also try a sugar scrub to exfoliate your plastic container in the same way you would exfoliate your body. Sprinkle 1 to 2 tablespoons of sugar in the bottom of the container and drizzle with a bit of dish soap. Cover with five to six ice cubes and let the mixture sit for one hour. Pour out the contents of the container, using the remaining sugar as an exfoliant on stains to loosen them from the plastic.
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Sunlight
To use sunlight to remove red stains from a plastic container, place the container in direct sunlight for a few hours. The intensity of the sun is important, so it is best to do this on a bright day. The sun will naturally remove the colour and eliminate any lingering scents.
Combining sunlight with other cleaning agents can also be effective. For example, you can rub lemon juice on the stained area of the container and then place it in the sun for one to two days. Alternatively, fill the container with warm water and a squirt of dish soap, put the lid on, and place it in direct sunlight for a few hours. The dish soap and warm water can be replaced with uncooked rice and water, which will also help to remove the red stain.
Although sunlight is a natural and effective way to remove stains, it may not work in mild climates or during winter.
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Rubbing alcohol
To use this method, first, apply rubbing alcohol to the stained area of the container. If the stain is on the outside of the container, you can pour the alcohol directly onto the surface. However, if the stain is on the inside of the container, pour the rubbing alcohol into the container and let it soak for a few minutes.
Once the stain has disappeared, rinse the container thoroughly with water and dish detergent to remove any residual alcohol. Finally, dry the container completely before using it again.
If you don't have any rubbing alcohol on hand, you can also use hand sanitizer as a substitute, as its active ingredient is alcohol. Simply apply the hand sanitizer directly to the stained area and follow the same steps as above. However, be cautious not to leave the hand sanitizer on the plastic for too long, as the high alcohol content may cause discolouration. Always test on a small area first and wear protective gloves to avoid skin irritation.
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Frequently asked questions
Mix equal parts water and vinegar and pour the solution into the stained container. Let it sit for 1-2 hours, then wipe, rinse, and dry the container. Alternatively, rub lemon juice on the stained area and leave the container outside in the sun for 1-2 days.
Bleach is a popular choice for removing tough stains from plastic containers. Mix one part bleach with ten parts water and apply the solution to the stained area. Let it sit for 10-15 minutes before washing it off. You can also use a dishwasher tablet by filling the container with warm water and dropping in a couple of tablets.
Make a paste by sprinkling 1-2 tablespoons of baking soda in the container and slowly adding warm water. Smear the paste all over the stained areas and let it sit for 30 minutes. After 30 minutes, wipe the paste with a damp cloth, then rinse with dish soap and warm water.











































