You won't believe how easy it is to cool a drink without a refrigerator!
When it's +30 outside and you're thirsty, a warm bottle of juice or a can of beer from the supermarket is unlikely to bring you any pleasure. Don't be upset! You can cool your drink without a refrigerator. Here are 5 interesting ways to quickly cool liquids. These life hacks will definitely come in handy this summer.
For this method, you will need a bowl of water, a few ice cubes, and a handful of salt. Mix all the ingredients in a bowl and place the container with your drink in it. In just a couple of minutes, it will be cold. Mixing ice with salt creates a special mixture, with a crystallization point that is well below zero Celsius.
When the salt crystal lattice is destroyed, it absorbs heat energy from the air. If you place a drink in a container with an ongoing reaction, the heat will start to be taken from it. It is important to consider: when combining these simple components, the temperature can drop to -30 ... -40 degrees. Be careful not to get cold burns on your skin.
It's hard to foresee all the situations that can happen at a picnic. But with some physics knowledge, you can benefit from the most unexpected things. For example, drinks can be cooled using compressed air. If you happen to have a can of compressed air lying around in the trunk of your car, consider yourself lucky. You'll also need an airtight container and a piece of plain transparent tape.
Place the container with the drink in a container, into which we pass the tube of the cylinder through a small hole. Seal the connection well with tape. After that, fill the container with air and wait a couple of minutes. You will feel how the temperature of the homemade refrigerator begins to decrease. The method is based on the Joule-Thompson law, in which the temperature of the gas changes as it flows from the high-pressure region to the low-pressure region under thermal insulation conditions.
One of the easiest and most effective ways to quickly cool a drink is to use a wet towel. Take a regular cloth towel, soak it in cold water (the colder the better), wring it out well and wrap it around the bottle or jar. Then place the drink in a well-ventilated place, such as a draft or under a fan.
Why does it work? When the water evaporates from the towel, it takes heat from the surface of the bottle. This process, called evaporative cooling, works wonders. Within 5-10 minutes, your drink will be noticeably colder. If you have ice, add it to the water before soaking the towel – the effect will be even cooler!
Sometimes it is necessary not only to cool a liquid, but also to lower the temperature of a hot drink, for example, tea. Of course, you can dilute it with water, but this will affect the taste. There is a simpler method that will not spoil your tea drinking. You need to put a few teaspoons into a cup of hot tea or coffee.
The more spoons you use, the faster the temperature will drop. This is because metal has excellent thermal conductivity. It is much better than glass and ceramics, so spoons immersed in hot liquid will quickly absorb heat and transfer it to the outside. The more massive the spoons, the more efficiently they work.
Everyone knows that drinks can be cooled by placing them in a body of water. But did you know that it works with soil too? If there is no sea, river or lake nearby, dig a hole in a shady place and place a bottle or jar in it. Then bury it, remembering to remember the location. The soil in the shade is much cooler than the air and will gradually absorb the heat from the container. True, this method is not fast and it may take 2-3 hours to cool.
Have you tried any of these methods? Share which one worked best. Or maybe you have your own secret for cooling drinks in the heat?