How to Remove Musty Odors from Vacuum Flasks

Опубликовал Admin
4-10-2016, 17:55
3 496
Vacuum flasks that have been stored for a time can smell musty and unappealing for reuse. Here is a way to restore the fresh odor.

Bleach and water

  1. Fill the flask to almost the top with hot water.
  2. Add a teaspoon of bleach.
  3. Fasten on the lid and leave the mixture to stand for five minutes.
  4. Rinse the vacuum flask out with hot water and leave upside down on a dish drainer to drain completely.

Baking soda

  1. If bleach doesn't appeal, try baking soda. This method will take a little longer but should still deliver good results.
  2. Fill the flask with hot water as above.
  3. Add 2 teaspoons of baking soda.
  4. Leave to stand overnight.
  5. Rinse out thoroughly the next morning and dry as above.

Lemon juice

  1. Squeeze the juice out of a lemon.
  2. Fill the thermos flask with boiling water. Pour the lemon juice in with it.
  3. Let stand for half an hour or so.
  4. Tip the water out. Allow to dry with the lid off. The flask should smell a lot nicer now.


  1. Store vacuum flasks with the lids open a little. This will help the vacuum to stay dry. If there is any moisture left and the lid is on firmly, this can encourage the growth of mold and this causes some of the odor.


  • This method also applies to coffee and tea flasks used to keep coffee and tea warm on a table etc., as well as the large catering flasks.
  • Denture tablets can be used to remove odors. However, be sure to rinse out well after using.

Things You'll Need

  • Hot water
  • Bleach for method one
  • Baking soda (bicarbonate of soda) for method two
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