How to use a thermos instead of a refrigerator

Everyone is used to using a thermos to take hot drinks with them. But he can retain not only heat, but also cold. When used correctly, it can become indispensable in hot summer weather.

A thermos device that allows you to replace a refrigerator

There are a huge number of different models on the market. But they are all approximately the same in structure and They work on a similar principle - they maintain the temperature of the product that is inside.

Flask

A thermos consists of two vessels placed one inside the other. The inner bowl has an additional coating that reflects hot or cold temperatures inside. The external one is most often made of stainless metal.

Important! Both bowls are attached to each other in the neck area in such a way that there is space between the walls.

Some manufacturers specifically pump out air from there, creating vacuum. This allows to reduce the thermal conductivity of the material and reduce heat exchange between the liquid and the environment.

This is why hot tea or cold water retains its original temperature longer than in direct contact with open air.

Lid

An important part of a quality thermos is the lid.In order to maintain the temperature in the vessel as long as possible, Manufacturers additionally seal the cork with foam or rubberized inserts. This improves the seal. Sometimes the inner and outer vessel may have separate lids.

Reference. Various models can be equipped with a valve in the inner lid, a screw-on cup, handles, and non-slip stands.

The flask will not be able to cool or freeze, but it will be able to preserve chilled foods.

What thermos is suitable instead of a refrigerator?

Let's say right away: any good thermos will cope with this task. Choose a product based on your needs: volume, neck width, the presence of a screw-on cup (or even several), a carrying handle.

• We do not recommend saving on the quality of the product, especially if the thermos will be used by a child.
• It is better to give preference to the product made of durable metal with a reliable stopper.
• Trusted manufacturers do not skimp on putting their logo and characteristics on the product. The inscriptions should not be erased, and even better when they are engraved.

Important! Products with a glass inner bulb are very sensitive to shock. If in doubt, it is better to give preference to metal. It holds the temperature no worse, but is not so afraid of falls and shaking.

• Shake the product before purchasing. No extraneous knocks should be heard, all parts must be firmly attached.
• You should also check the plug for play and tightness.

There is such a type of temperature-saving cookware as thermal mugs. They are more compact and convenient than large and heavy thermoses. But the thermal mug Retains temperature only for a few hours. It's perfect for taking hot coffee to the office or cold water to the gym.

How to properly use a thermos instead of a refrigerator

In a high-quality thermos, the temperature should remain for quite a long time. Keeping cold works on the same principle as keeping warm. But you should know a few important rules for handling these devices.

• Before first use The product should be thoroughly washed with dishwashing detergent and then rinsed from the inside with boiling water. This will allow you to wash away unwanted chemicals and pathogenic bacteria.
• When storing cold foods, you do not need to load them immediately after rinsing the flask with boiling water. It must cool completely.

Reference. You can place the empty flask in the refrigerator for a while. This will help extend the shelf life of refrigerated foods.

• Since the thermos itself will not lower the temperature, cool drinks or food before loading it into the flask.
• There is no need to store drinks in containers for more than a day. In any liquid, sooner or later undesirable chemical reactions begin to occur. Especially if the product is cheap and made from low-quality materials. Drinking such water or juice after long-term storage will be hazardous to health.
• Wash the inner flask in a timely manner using cleaning products and a brush. Be sure to rinse after washing.
• Before storing the thermos, dry it thoroughly. Unpleasant odor and residue are a very common problem when sealed cookware is used incorrectly.
• Each thermos has its own expiration date, which is indicated on the packaging. These numbers should not be neglected. Don't forget to replace it with a new one in a timely manner.