Thermos cup turns into a "bomb"? You must know these safety hazards →

In daily life

Thermos cup is convenient and has heat preservation properties.

It has become the preferred tool for many people to brew health-preserving ingredients

However

There have been many recent cases of thermos cups "exploding"

Aroused widespread public attention

Why did the thermos suddenly explode?

What should you pay attention to when using a thermos cup?

Dr. Ke has the answer for you

The explosion of the thermos is not an accident , but the result of the combined effects of its sealing, physical and chemical properties. Although the sealing design of the thermos helps to keep the heat, it also makes it difficult for the steam and gas generated inside to be discharged . When hot water is filled into the thermos and the lid is tightened, water vapor will accumulate in the cup, and as the temperature rises, the steam pressure continues to increase. If external force is applied to the thermos at this time, such as shaking, the pressure will be released instantly, causing the lid or cup body to explode.

In addition, soaking certain ingredients in a thermos, such as red dates and wolfberries , may also cause similar problems. After soaking these ingredients in water, they are prone to breed microorganisms and ferment , producing a large amount of gas. In an environment with suitable temperature and sufficient nutrients, these microorganisms will ferment to produce a large amount of carbon dioxide and other gases, and the longer the time, the more gas is produced. The air pressure inside the sealed thermos continues to increase. Once the lid of the cup is suddenly unscrewed, it may cause the liquid to gush out, causing an explosion and injuring people.

In addition to the risk of "explosion", the use of thermos cups also poses other safety hazards. For example, the hygiene of thermos cups is often overlooked. So, how should we clean thermos cups correctly?

(1)

Wash thoroughly once a day

Thoroughly cleaning the thermos bottle every day is the fundamental way to prevent odor and stains. When cleaning, do not simply rinse it with water, but thoroughly clean the cup surface, liner and bottle cap.

(2)

Cleaning steps

① Clean the inner tank: Put a small amount of salt in the thermos cup, add warm water, shake it thoroughly to mix it evenly, and then soak it for 5 to 10 minutes . Salt has a certain bactericidal and cleaning effect, which can effectively remove stains and odors in the inner tank.

② Clean the bottle cap: Remove the cup lid, squeeze toothpaste onto a soft-bristled toothbrush, and gently scrub the gap in the bottle cap to make sure to remove the dirt and bacteria hidden in the gap.

③ Rinse the whole body: Use clean water to rinse the inside and outside of the thermos cup, making sure all detergents are thoroughly rinsed off.

④ Drying: After cleaning, do not cover the cup immediately. The thermos cup should be dried thoroughly to avoid odor or bacterial growth caused by moisture.

Understand the principle of thermos cup "explosion"

Master the correct usage and cleaning methods

To truly bring into play the convenience of the thermos cup

Protect your own health!

Do you have any other tips for usage and cleaning?

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Source: Life Times, Guangzhou Daily, and China National Radio.

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