How to clean a stainless steel thermos from tea raid and smell

Thermos - practical and useful thing in the household. Hot tea or coffee will be a real salvation at a picnic, on a hike, with a long stay outdoors in cool weather. It does not always work to warm up lunch at work, so a thermos is indispensable in such situations. For the manufacture of flasks, most manufacturers use stainless steel, which has high consumer characteristics: not beating, not deformed, wear-resistant.

Unlike glass analogues, steel containers become dirty more quickly - tea bloom forms on the inner surface of the flask, and if the thermos is used for first or second courses, sooner or later there is an unpleasant smell of food. This causes a deterioration in the taste of beverages and dishes. If this happens, effective folk methods will help to clean the thermos at home.

Safety precautions and precautions

To avoid undesirable consequences when cleaning the thermos, follow the rules:

  • Do not place the container in the dishwasher either completely or unassembled.
  • Do not immerse completely in water so that liquid does not leak into the space between the body and the flask.
  • It is unacceptable to use bleaching agents based on chlorine to clean the thermos from stainless steel, so as not to damage the seams of the vessel.

Cleaning stainless steel thermos from tea raid and odor

Slice of lemon

Modern housewives managed to try a lot of means for cleaning the flasks. Among them are both very simple and very original. I propose to get acquainted with the most effective of them.

Rice and pearl barley

Three tablespoons of rice is enough to return the inner surface of the thermos to its original purity. To do this, pour the cereal into the flask, add 100 ml of boiling water, close the lid. In just half an hour, rice will do what it takes. At the end of the process, shake the thermos several times, drain the contents and rinse.

In the case of barley will have to work a little. Pour into a flask of half a cup of cereal, add 2 tablespoons of soda and 100 ml of cold water.Hermetically closing the vessel, vigorously shake it for 10-15 minutes. After the specified time, open the thermos and, making sure it is clean, remove the contents and rinse the flask.

Table Vinegar

In a flask for 25% of the volume, pour vinegar, and the remaining 75% fill with hot water. Within a few hours, the plaque will dissolve under the influence of the substance and the unpleasant smell will disappear. Remember, vinegar itself has a rather sharp aroma, so after use, rinse the container several times with warm water and leave it open until it dries completely.

Carbonated drink "Coca-Cola"

Heat the Coca-Cola well (almost to the boil), fill the thermos with it and leave it open for the night. In the morning, drain the liquid and rinse the flask with warm running water. The active chemical compounds contained in the drink guarantee high-quality cleaning of the walls from various kinds of contaminants.

Lemon acid

If a layer of plaque is uncritical or a faint odor emanates from the flask, use lemons or citric acid. Cut the citrus into cubes and place on the bottom of the flask. Bring water to a boil, pour thermos to the brim and leave for 12 hours.Rinse the flask with the usual soap solution and rinse thoroughly - the inner walls of the vessel will become like new. The same effect can be achieved by pouring one and a half tablespoons of citric acid overnight with boiling water.

Video Tips

Baking powder

Pour two bags of powdered mixture into a thermos and cover with warm water. Allow the solution to brew for 2 hours. Drain and rinse the container.

Baking soda

Dissolve baking soda in water at the rate of 1 teaspoon per 200 ml of liquid, add the solution to a thermos and leave overnight. The next day, empty the contents and rinse the container.


Buy any chlorine-free bleach in powder, paste or gel at a hardware store. Fill the 1/3 flask with the product, then top up with boiling water. Hermetically closing the container, shake it well. All pollution will disappear without a trace.

Consider that the bleach is toxic, so wash the flask with detergent first, and then rinse it several times with warm water.


With the help of this tool with a very pungent odor, the hostesses remove the pollution that they could not cope with in other ways.

Take an unnecessary plastic lid (which will fit freely on the bottom of the flask), make small holes in the walls and pull threads through them that are much longer than the height of the thermos flask.
Fill the cap with ammonia and lower it into the flask, securing the ends of the threads with masking tape on the outer wall. Close the thermos bottle and leave it overnight. In the morning, remove the plastic container with alcohol by pulling the strings, wash first with detergent, and then rinse with water.

Professional chemicals

If you do not like to apply folk methods, ask for help to highly effective means. They are easily applied by means of a sprayer, easily washed off with ordinary warm water, and most importantly, they completely restore the cleanliness and gloss of the surface. Pay attention to such products as EcoVita, CLINOX, DenkMit, Passion, San Clean cleaning cream, etc.

Video guide

How to clean plastic and glass thermoses

Flasks made of glass, compared with steel, retain their original purity much longer, but nevertheless, there comes a time when a raid appears on them. There is no point in resorting to aggressive means.The desired effect can be achieved by selecting the most benign of the above-described methods for cleaning stainless steel flasks.

As for plastic containers, everything is much more complicated. They are poorly washed, more easily absorbed by harmful substances, faster accumulate various odors, as well as unstable to the influence of aggressive media. The best way to extend the life of a plastic flask thermos will be frequent (so as not to form a stable plaque) washing with means with a neutral taste and smell, for example:

  • “Rice + water”.
  • “Barley + salt + water”.
  • “Baking powder + water”.

Rules for the care of a stainless steel flask

Man with thermos

To serve the thermos for many years, follow the requirements for caring for him.

  • Before using for the first time, clean the flask with ordinary dishwashing detergent and water.
  • Before filling with hot liquid, pour over the walls inside the vessel with warm water. There should be no sudden changes in temperature, so that microcracks do not appear on the surface.
  • Do not put the flask in the oven or freezer to heat or cool it before filling.
  • Check how tightly the lid is closed.
  • Do not overfill the thermos.Always leave a little space for cork.

Helpful Tips

You can extend the life of a thermos by following the simple rules of care.

  1. After each use, thoroughly clean the inside surface with a brush and ordinary dish detergent. So remove the remnants of food and microparticles of tea, preventing the formation of odor and sustainable plaque.
  2. Do not use abrasive cleaners: sand, eggshell, hard wire brushes, so as not to damage the walls of the thermos.
  3. Sometimes it turns out to clean the inner surface to perfect condition, but the unpleasant smell will remain. Smell the traffic jam. Most likely, the problem is in it. To remove odors from the cork, boil it for a few minutes in salt water.

Based on the above material, you will be able to choose one or more methods for cleaning the heat capacity for storing chilled or hot drinks and products.

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If you have several thermos flasks, determine the material from which the flasks are made. Pay attention to the capacity and diameters of the covers. See which ones are more suitable for those or other drinks and food. Decide in advance with the most appropriate cleaning methods.

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