Amid heat wave that hits the countryeveryone does what they can to face the high temperatures, which sometimes exceed 40°C, and stay hydrated throughout the day. Of various sizes and colors, thermos bottles are everywhere, at work, on the street and on public transport.
There are many options on the market. But do you know how to take care of them to increase their durability? Check out some tips from manufacturers.
How to prepare the bottle?
Gocase, Vibets, Tramontina and Stanley recommend a practice known as “scalding” the bottle, before each use, to increase its temperature conservation capacity.
This involves placing hot water or ice-cold water inside the bottle, depending on the purpose, waiting around five minutes without the lid on, emptying it and immediately filling it with the new drink.
Glück, however, considers that the variation obtained is very small, almost imperceptible.
Where to store?
Tramontina and Stanley consider the act of placing the bottle in the refrigerator or freezer to be irrelevant for preserving the temperature of the liquid, as its wall acts as a final insulator, preventing the exchange of temperature with the external environment.
Gocase and Vibets, however, consider that the practice may still damage the item. “Low temperatures reached in the refrigerator can cause the bottle to contract, also damaging the vacuum layer”, explains Vibets.
Glück, in turn, only recommends that the bottle be placed in a shaded place, to avoid heating the cap.
How to wash after use?
Stanley, Tramontina and Gluck recommend washing in running water and with neutral soap or detergent on a daily basis. Stanley adds that, for a deeper wash, you can use a mixture of baking soda and warm water.
Gocase only recommends that abrasive sponges be avoided when washing.
Vibets recommends filling the bottle with warm or hot water and a spoonful of neutral detergent (for up to 1.15 l of water) and letting the solution sit for three to five minutes. Deep cleaning is recommended every two or three months, with a mixture of baking soda, vinegar and hot water (for every 500 ml of water, use 1 full tablespoon of baking soda and 50 ml of vinegar).
Leave to soak for two hours. After this period, throw the mixture away and wash with running water and neutral detergent.
Can you put it in the dishwasher?
Stanley considers it safe, but always advises to consult the information recorded on the bottom of the product.
Tramontina and Gocase do not recommend the practice, as it may alter the quality of the product.
Vibets informs that vacuum insulated bottles are not recommended to be washed in washing machines due to the high temperature they reach.
Can you add carbonated drinks?
Gocase, Tramontina and Stanley recommend that carbonated liquids are not placed in bottles. “Pressure can build up and lead to lid malfunction, which can cause spillage, scalding or even forced ejection of the lid and contents”, explains Stanley, except in the case of the Growler model, which is suitable for these liquids.
Vibets and Glück allow use for this purpose, but the latter warns that the conservation capacity may decrease with the release of air inside the bottle.
Can you add ice?
Gocase, Tramontina, Stanley, Glück and Stanley indicate and confirm that placing ice next to the liquid increases the temperature conservation capacity.
Tramontina warns that dry ice is not recommended, as it can cause pressure and damage the thermos.
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