Omar Khalid
It is not uncommon to find mould in plastic food containers, especially when they are stored at the back of the refrigerator. While it is generally advised to discard mouldy plastic containers with grooves and scratches, those that are smooth and scratch-free can be cleaned and reused. To clean mould off plastic food containers, one can use a combination of bleach and water or undiluted vinegar, with baking soda for added scrubbing power. Denture cleaning tablets are also an effective way to remove mould from plastic containers.
Characteristics and Values Table for Cleaning Mold off Plastic Food Containers
| Characteristics | Values |
|---|---|
| When to discard | If the container is cracked, scratched, or has grooves and pits in it, it is best to discard it. |
| Precautions | Wear a mask if you are sensitive to mold. Wear rubber gloves to protect your hands. |
| Removal of moldy food | Use a paper towel to scrape the moldy food into the garbage. |
| Removal of mold | Wipe out food residue and mold using paper towels. Wash the container with dish soap and a paper towel or a disposable rag. Soak the container in a bleach or vinegar solution to disinfect it and kill any remaining mold spores. |
| Soaking solutions | Bleach solution: 1 cup of bleach and 1 gallon of water or 1 cup of bleach and 4 liters of water. Vinegar solution: undiluted vinegar with baking soda for added cleaning power. Denture cleaning tablets can also be used. |
| Soaking time | Soak for 15-30 minutes for bleach, 1 hour for vinegar, and 20 minutes or more for denture cleaning tablets. |
| Post-soaking | Wash the container with dish soap and warm water. |
| Drying | Proper drying is crucial to prevent mold from returning. |
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What You'll Learn
Use bleach or vinegar to disinfect
Bleach is an effective sanitizer for removing mould from plastic containers. Create a bleach solution by combining one cup of bleach with one gallon of water in a large glass bowl. Place the bleach solution in the bowl so that it fills the plastic container. Allow the plastic container to soak in the bleach solution for 15 to 30 minutes. After soaking, put on rubber gloves to protect your hands from the bleach. Remove the container from the bleach solution and rinse it thoroughly. Finally, wash the container and the bowl with dish soap and warm water.
If you prefer a natural disinfectant, vinegar is also effective, killing 82% of known mould species. The process is the same as above, but vinegar requires a longer soak time of one hour. If desired, sprinkle some baking soda into the vinegar to boost its cleaning power.
For smaller items, such as bottle lids, a diluted bleach solution can be used. Fill a sink with warm water and add one part bleach. Soak the lids in the solution for about 10 minutes, allowing the water to seep into the crevices. Alternatively, use denture cleaning tablets in hot water and soak for at least 20 minutes.
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Soak containers in hot water
Soaking containers in hot water is an effective way to clean mold off plastic food containers. It is important to remember that mold can grow on the plastic itself and not just on food remnants. Therefore, it is crucial to clean and sanitize containers to ensure the removal of all mold spores.
To begin the process of cleaning, put on protective gear such as rubber gloves and a mask, especially if you are sensitive to mold. Use paper towels to scrape away moldy food remnants and wipe away as much food residue and mold as possible.
Next, fill your sink with hot water and add a few drops of liquid dish soap. You can also use a large bowl or container that is suitable for soaking. Ensure that the water is sufficiently hot, creating a favorable environment for the soap to work effectively.
Submerge the plastic containers in the hot, soapy water and let them soak. The soaking time can vary depending on the severity of the mold buildup. For light to moderate mold, 20 minutes of soaking should be sufficient. However, for heavily molded items, consider soaking for longer, up to an hour or even overnight. The heat from the water will help loosen and dislodge the mold, making it easier to clean.
After soaking, scrub the containers with a sponge or bottle brush, paying close attention to areas where mold tends to hide, such as crevices, lids, and around mouthpieces. Rinse the containers thoroughly with warm water to remove any remaining soap residue.
Finally, allow the containers to air dry completely. Mold thrives in damp environments, so ensuring that your containers are thoroughly dried is crucial to preventing mold from returning.
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Use a toothbrush to scrub
If your plastic food containers have fallen prey to mould, don't despair—you can save them! Here's how to scrub away that mould with a toothbrush:
First, protect yourself. If you're sensitive to mould, wear a mask and rubber gloves to avoid direct contact with mould spores. Empty the container and use paper towels to scrape away and dispose of as much mouldy food and residue as possible.
Next, grab a toothbrush. If the mould is on the container's surface, use the toothbrush to scrub away any remaining mould particles and food residue. Add some dish soap to the toothbrush if needed to help loosen and remove the mould. Be gentle but firm, especially if the mould has stained the container.
For stubborn mould, create a cleaning solution to help loosen its hold. Fill a sink or large bowl with hot water and add a couple of denture-cleaning tablets, or use a solution of vinegar and baking soda. Let the container soak for at least 20 minutes, or longer if the mould is particularly stubborn.
After soaking, use the toothbrush to scrub away the loosened mould. Rinse the container with warm water, then wash it with dish soap and warm water to ensure all traces of mould and cleaning solution are removed.
Finally, dry the container thoroughly. Proper drying is crucial to prevent mould from returning. If your container has grooves or scratches, be extra vigilant to ensure no water is trapped, as this could provide an inviting environment for mould to return.
With these steps, you can rescue your plastic food containers from mould and keep them in good condition for future use.
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Rinse and dry thoroughly
Rinsing and drying thoroughly are crucial steps in the process of cleaning mould off plastic food containers. It is important to rinse the container after treating it with a cleaning solution to ensure that all traces of the solution are removed. This is especially important if you use bleach as a cleaning agent, as it can irritate the skin and leave a strong odour if not thoroughly rinsed away. Wearing rubber gloves while handling bleach solutions is recommended to protect your skin.
To rinse the container effectively, use warm or hot water and ensure that all inner and outer surfaces are thoroughly rinsed. Pay close attention to corners, crevices, and any textured areas where mould spores may be more likely to linger. You may use a sponge or a soft-bristled brush to aid in the rinsing process, gently scrubbing all surfaces to help dislodge any remaining mould or cleaning solution residue.
After rinsing, it is essential to dry the container thoroughly. Mould thrives in damp environments, so ensuring that your container is completely dry helps prevent the return of mould. You can dry the container by placing it upside down on a clean, dry surface and allowing it to air dry. Using a clean cloth or towel to gently pat the container dry is also an option. Ensure that you dry both the inside and outside of the container, including any lids or crevices, as moisture retention in these areas can promote mould regrowth.
Proper ventilation in the drying area is also important. If possible, dry the container in a well-ventilated space to promote airflow and expedite the drying process. Additionally, consider placing the container near a source of heat or sunlight, as this can help accelerate evaporation and ensure that the container is entirely dry.
Once the container is completely dry, inspect it for any signs of remaining mould or discolouration. If any mould stains or odours persist, you may need to repeat the cleaning process or consider discarding the container, especially if it is intended for food storage. Remember to handle the container with clean hands during the inspection to prevent reintroducing mould spores or bacteria.
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Store in a dry, well-ventilated space
To prevent mould from growing on your plastic food containers, always store them in a dry, well-ventilated space. Wipe them down if they get wet. Before storing them, ensure they are clean and completely dry.
Mould thrives in warm, damp environments, so controlling moisture is key. If your plastic containers have been stored for a long time, they may develop mould, especially if they have food residue on them. If you find mould on your plastic containers, you can clean it away and sanitise the containers to use again.
Firstly, remove any food, dust, mould, or residue from the plastic surface. Put on gloves and take precautions to avoid inhaling or spreading fungal spores. Use a sponge or cloth with antimicrobial soap to thoroughly clean away debris. Once you’ve removed visible mould particles, you can start the sanitising process.
To sanitise your plastic containers, you can use either bleach or vinegar. Combine one cup of bleach with four litres of water, or use undiluted vinegar. Bleach is great for removing stains, but it can discolour plastic. Vinegar is safe for those with sensitive skin and will eliminate odours, but it won't get rid of stains as effectively as bleach.
Soak your plastic containers in the bleach or vinegar solution for 15 to 30 minutes. If using vinegar, you can add some baking soda for extra cleaning power. After soaking, wash the containers with dish soap and warm water.
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Frequently asked questions
First, remove any food, dust, mold, or residue from the plastic surface using a paper towel or a sponge. Then, wash the container with dish soap and warm water. You can also use vinegar or bleach to disinfect the container and kill any remaining mold spores. Finally, rinse and dry the container thoroughly.
Bleach and vinegar are both effective mold removers. Bleach is great for removing stains, but it can discolour plastic. Vinegar is great for removing odours and is safe for sensitive skin.
If the plastic container has grooves or scratches, it is best to discard it as these can trap bacteria and mold.
Mold thrives in warm and damp environments, so controlling moisture is key. Always store plastic items in a dry, well-ventilated space, and wipe them down if they get wet.
