
Tea has a tendency to stain plastic containers, and if left unattended, it can lead to the growth of mould. Moulds thrive in moist environments, and they can grow on the food inside the containers as well as on the plastic itself. To prevent this, it is important to clean and sanitise containers regularly. This can be done by using a dishwasher, or by manually cleaning the container with hot water and detergent, or soaking it in a bleach solution. For tougher moulds, a concentrated hydrogen peroxide solution can be used, or a baking soda and bleach mixture.
| Characteristics | Values |
|---|---|
| Prevention | Clean containers regularly to prevent mold from forming. |
| Store containers in a place with good air circulation. | |
| Use dishwasher-safe containers. | |
| Cleaning products | Bleach |
| Hydrogen peroxide | |
| Baking soda | |
| Vinegar | |
| Denture cleaning tablets | |
| Dishwasher detergent | |
| Ammonia | |
| Sulfuric acid | |
| Oxyclean | |
| Hot water | |
| Cleaning methods | Soak containers in a cleaning solution |
| Scrub containers with a brush | |
| Wash containers in the dishwasher |
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What You'll Learn

Use a vinegar solution
Vinegar is an effective way to get rid of tea mold in plastic containers. It is a safe, non-toxic option that is ideal for households with young children and pets. It also helps to eliminate odors without discoloring plastic.
To make a vinegar solution, fill your plastic container halfway with equal parts distilled white vinegar and water. Then, shake the contents vigorously and let the solution settle for a few hours or overnight. Afterward, empty the container and rinse it thoroughly with hot water. Finally, let the container dry completely to prevent mold from returning.
For a more intensive cleaning solution, especially if there is stubborn residue, you can use undiluted vinegar. Soak the affected areas in vinegar for at least one hour. For extra scrubbing power, add a teaspoon of baking soda to the vinegar. This combination creates an oxidative reaction that helps loosen black mold from surfaces, making it easier to scrub away.
If your plastic container has a lid or small parts, such as a water bottle with a lid and straw, you can soak them in hot vinegar water to remove mold. Simply fill a cup with hot water and add vinegar, then let the small parts soak overnight. The next day, rinse them thoroughly and dry them completely.
Using vinegar to clean tea mold in plastic containers is a safe and effective method that will leave your containers odor-free and mold-free. Remember to dry the containers thoroughly after cleaning to prevent mold from returning.
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Try a bleach bath
Bleach can be an effective way to sanitise plastic containers and remove mould. However, it is important to exercise caution when using bleach on plastic, as it may cause degradation or leave residue.
If you wish to use bleach, it is recommended to use a diluted solution. The suggested concentration is approximately 50-200 ppm, which equates to one tablespoon of bleach per gallon of water. Ensure you only soak the container briefly in the solution, then thoroughly rinse with clean water to remove any bleach residue. Avoid prolonged soaking to prevent potential damage to the plastic.
It is also important to note that bleach should not be mixed with other cleaning products. Always ensure good ventilation when using bleach, and allow the container to dry completely before use.
As an alternative to bleach, you may wish to try using a baking soda and bleach mixture. Add a teaspoon of baking soda and a teaspoon of bleach to your container, then fill it with water. Shake the container well and let the solution sit overnight before rinsing thoroughly.
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Soak with baking soda
Baking soda is a natural, gentle abrasive that helps loosen stains and odors. To use it to remove tea mold from your plastic containers, follow these steps:
Firstly, rinse your container with warm water as soon as possible after use. This will help prevent discoloration and reduce the buildup of stains and odors. Next, create a baking soda paste by adding a couple of tablespoons of baking soda to the container, followed by warm water. The amount of water you add should be just enough to form a paste with a consistency slightly thinner than toothpaste.
Using a soft sponge or cloth, spread the paste over the bottom and sides of the container, ensuring it reaches all corners and curves. Let the paste sit for around 30 minutes. After this, wipe the paste around with a damp cloth, paying particular attention to the bottom, and then rinse with dish soap and warm water.
If the tea mold stain is particularly stubborn, you can try applying a thicker layer of the paste and letting it sit for longer, up to an hour. Alternatively, you can try using a two-part method of baking soda and salt. Sprinkle baking soda onto a damp cloth, then pour some salt onto the cloth and rub it into the plastic in small circular motions before rinsing the container thoroughly.
If the baking soda has removed the stain but not the odor, you can use a natural deodorizing method. Crumple up some newspaper, pack it into the container, and seal it with the lid. Leave the container for one to two days, then discard the newspaper and wash the container with hot, soapy water.
By following these steps, you should be able to effectively remove tea mold from your plastic containers using baking soda, without causing any damage to the plastic.
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Hydrogen peroxide solution
Hydrogen peroxide is an effective way to get rid of tea mould in plastic containers. It is an organic compound that attacks and disables fungi and other pathogens. It is also a safer alternative to bleach for those who are sensitive to it.
To use hydrogen peroxide to remove mould from a plastic container, follow these steps:
- Pour a 3% concentrated solution of hydrogen peroxide into the container.
- Shake the container well.
- Let it sit overnight with the lid open.
- In the morning, pour out the hydrogen peroxide.
- Rinse the container thoroughly with water.
- Allow the container to air dry.
It is important to note that hydrogen peroxide should not be mixed with vinegar, bleach, or commercial cleaners as this can form toxic gases. Additionally, it is recommended to wear gloves and protective gear when working with hydrogen peroxide to avoid skin and eye irritation.
If the mould in the plastic container is particularly stubborn, you can try creating a paste with hydrogen peroxide and baking soda. Mix one part hydrogen peroxide with two parts baking soda to form a paste. Apply the paste to the mouldy areas and let it sit for at least 30 minutes. Then, use a damp, soft-bristled brush to scour the area and rinse well with water. Dry the container with a microfiber cloth and let it air dry for several hours.
Hydrogen peroxide is a useful and affordable household product that can effectively remove mould and stains, sanitise surfaces, and clean appliances.
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Denture cleaning tablets
You can also use denture cleaning tablets to remove tea and coffee stains from plastic containers. Fill the container with warm water and add a denture tablet. Let it soak overnight, then pour out the solution and wash the container in hot, soapy water. Rinse and dry the container, and it should be oil-free and spotless.
In addition to removing stains, denture cleaning tablets can also be used to descale tea kettles and coffee makers. Fill the kettle or reservoir with water, add one or two tablets, and let them dissolve. For a tea kettle, scrub it well after a few hours, then discard the water and rinse. For a coffee maker, run a cycle, then discard the water and refill the reservoir with fresh water. Run the coffee maker a couple more times to rinse away any remaining deposits.
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Frequently asked questions
There are several ways to get rid of tea mold in plastic containers. Here are some common methods:
- Soak the container in a solution of vinegar and water.
- Wash the container with dish soap and a paper towel or a disposable rag.
- Soak the container in a solution of bleach and water.
- Wash the container in the dishwasher.
To prevent tea mold from growing in your plastic containers, it is important to clean and sanitize your containers regularly. Make sure to remove all food residue and wash your containers with warm to hot water and dish soap.
If you prefer a natural approach, you can use vinegar instead of bleach to sanitize your containers. Vinegar is effective against mold, killing 82% of known mold species. However, it may require a longer soaking time compared to bleach.
When using bleach to clean your plastic containers, it is important to dilute it with water before applying it to the affected areas. The recommended ratio is 10 parts warm water to 1 part bleach. Always rinse the container thoroughly with water after using bleach to ensure no residue is left behind.











































