How To Clean a Thermos: Tips on How to Do it Right

A thermos can prove to be one of the best investments for any coffee lover. It will allow you to enjoy your drink anywhere and anytime. This is perfect for people on the go. It will keep your drink hot or cold, depending on what you prefer. It is important, however, to pick the right one to ensure the right quality.

In addition, you should also be familiar with how to clean a thermos. The good news is that it is pretty much easy. No technical skills required! All that you need would be a little time and effort to spare. In the rest of this post, we will let you know how it can be done.

how to clean a thermos

Importance of Keeping your Thermos Clean

Why is it important to clean your thermos? Won’t it be nothing but a waste of time? Well, if you want your thermos to retain its best quality in the long run, regular cleaning is a must. This will help it to look good even through time and will make sure that it is going to be fully functional. In addition, the interior can also have hardened parts from coffee sediments. If this is regularly cleaned, such will not accumulate. And best of all, regular cleaning will make sure that you will be able to enjoy high-quality coffee all the time.

How to Clean a Thermos

There are many ways by which it will be possible to clean your thermos. Among others, one of the simplest and most effective is the use of warm water and liquid detergent. It will be good to use mild detergent only. If it is too strong, the smell can be overpowering and can possibly linger on the interior of the thermos. Remember, you have to rinse it only with hot water, but it should never be submerged. Make sure as well that it is properly dried before storage.

Another way to clean your thermos would be through the use of natural cleaners that are available in the kitchen. In this case, vinegar and baking soda are sure to do the trick. Fill the bottom of the thermos, about an inch, with vinegar. It would be best to use cider vinegar. Its high level of acidity makes it more effective in cleaning. Add at least a tablespoon of baking soda. Next, add boiling water. Do not put the lid. Just let it foam and after a while, rinse. Rinsing should be done thoroughly since the smell of vinegar can linger on the thermos.

Baking soda can also be combined with hydrogen peroxide to create a cheap and natural cleaning solution. Just follow the same instruction as above.

You can also use baking soda on its own, which will make an excellent choice for a cleaning scrub. All that you have to do is to pour some inside the thermos. Add a bit of water and use a brush to clean the interior.

Salt and ice can also be used for cleaning your thermos. Using small ice cubes, fill the thermos up to about ¼ of its total capacity. Once it is filled with ice, add at least two tablespoons of salt. Put on the lid and shake the thermos. The salt will act as the scrubbing agent and will be pushed by the ice, allowing it to clean the interior walls of your thermos. Discard the ice, fill the thermos with warm water, and rinse.

Some Things to Keep in Mind

Aside from the things that have been mentioned above, remember the following things as well:

  • Do not put it in the dishwasher. Even if it is tempting and convenient, this can cause damages in your thermos and can shorten its functional life.
  • Be careful when you are handling the exterior of the thermos. You should avoid scrubbing the outside with abrasives, especially if it is made from stainless steel. Brushes can cause scratches on the outside, which will have a negative impact on aesthetics.
  • Make sure that the thermos is completely dried before it is stored. If there is still water dripping, especially inside the thermos, this can lead into a foul smell.
  • Store it in the right place. Make sure that it is kept in a clean cabinet. Do not leave it in the open kitchen.
  • If your thermos is made from stainless steel, do not use chlorine bleach. The latter can have a negative effect on the steel weld of the thermos.
  • As much as possible, drink from a cup and avoid drinking directly from the flask as this can cause scalding.
  • Avoid storing milk inside the thermos, especially for an extended period of time. This can trigger bacterial growth.
  • Do not put the thermos inside the microwave if you want to heat water or your drink.
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