Vacuum flasks have become an essential item for many due to their ability to maintain the temperature of beverages and food for extended periods. Additionally, they help preserve the flavor and quality of their contents.
However, with regular use, black mold stains may appear on the flask’s sealing ring. To address this issue, explore the following tips on how to quickly and effectively remove these unsightly stains.
1 What is a Vacuum Flask Sealing Ring?
What is a sealing ring?
Vacuum flasks, especially high-quality ones, typically feature a double-layered lid. The outer lid is made of plastic or alloy and designed with a screw thread. The inner lid includes a sealing ring, usually white, made of silicone.
The sealing ring’s function is twofold: to securely seal the flask’s neck, preventing leaks during transportation, and to enhance the flask’s insulation capabilities.
2 Tips to Remove Black Mold Stains from the Sealing Ring
Using Vinegar and Water
Ingredients
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1 tablespoon
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5 tablespoons of water
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A small amount of mild dish soap
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Tools: 1 old toothbrush, 1 clean cloth
Instructions
Begin by mixing the vinegar, water, and dish soap in a container. Next, remove the sealing ring from the flask and soak it in the solution for about 2–3 minutes.
Then, use the toothbrush to scrub the ring with the solution until it is clean. Finally, wipe the ring with a cloth to remove any residual solution and ensure it is dry to prevent bacterial and mold growth.
Using Toothpaste
Ingredients
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1 tube of
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Tools: 1 old toothbrush, 1 damp cloth, 1 clean cloth
Instructions
Start by removing the sealing ring from the flask. Then, apply a small amount of toothpaste to the ring and let it sit for about 2–3 minutes. Next, use the toothbrush, dampened with water, to scrub the ring until it is clean.
Finally, use the damp cloth to wipe away the toothpaste, and dry the ring with the clean cloth to prevent bacterial and mold growth.
Using Alcohol
Ingredients
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50ml – 100ml of alcohol
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Tools: 2 clean cloths
Instructions
Begin by removing the sealing ring from the flask. Then, simply soak one of the cloths in alcohol and gently wipe the ring until the mold stains are removed.
Finally, use the other cloth to dry the ring, ensuring it is completely dry to prevent bacterial and mold growth.
Using Biological Enzyme Mold Remover
Ingredients
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Biological enzyme mold remover
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Tools: 1 old toothbrush or 1 clean cloth
Note: You can purchase biological enzyme mold remover from various online retailers.
Instructions
Start by removing the sealing ring from the flask. Then, spray the biological enzyme solution onto the ring. Finally, use the cloth or toothbrush to gently scrub the ring until it is clean.
Using Baking Soda
Ingredients
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1 tablespoon of
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1–2 tablespoons of warm water
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Tools: 1 old toothbrush, 1 damp cloth, 1 clean cloth
Instructions
Begin by mixing the baking soda and warm water to form a paste. Next, remove the sealing ring from the flask. Then, use the toothbrush to apply the paste to the ring and gently scrub until the mold stains are removed.
Finally, use the damp cloth to wipe away the paste, and dry the ring with the clean cloth to prevent bacterial and mold growth.
Now that you know these effective methods for removing mold stains, you can keep your vacuum flask in pristine condition. Try these tips today to ensure your flask always looks and functions like new.
