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How Do You Clean a Copper Thermos?

Published in Cleaning & Maintenance 2 mins read

Cleaning a copper thermos can be easily done using common household ingredients. Here’s a simple method based on readily available materials:

Cleaning Your Copper Thermos

The primary method for cleaning the inside of a copper thermos involves using a mixture of salt and an acid like lemon juice or vinegar. Here's a breakdown of the process:

What You Will Need:

  • Salt
  • Lemon juice or vinegar (whichever you have available)
  • Water

Cleaning Steps:

  1. Prepare the Mixture: Combine salt with either lemon juice or vinegar. The amount doesn't have to be precise; a tablespoon of salt with a few tablespoons of either liquid will generally work well.
  2. Add Water: Add a small amount of water to this mixture.
  3. Pour Inside: Pour the mixture into your copper thermos.
  4. Close and Shake: Securely close the lid of the thermos and shake it vigorously for a few minutes. This allows the mixture to scrub the interior surfaces.
  5. Empty and Rinse: Pour out the cleaning mixture and thoroughly rinse the thermos with water.

Practical Insights

  • Frequency: You can perform this cleaning process regularly to prevent buildup.
  • External Cleaning: Remember to also clean the exterior of your thermos using a soft cloth. You can use the same mixture if needed.
  • Drying: Ensure the copper thermos is fully dried to prevent any further buildup or water spots.
  • Avoid Harsh Abrasives: Don't use harsh scouring pads, they may damage the metal surface.

By following these steps, you can effectively clean your copper thermos and keep it in good condition.

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