Do Beer Koozies Really Work?
You may have heard of koozies being used to keep beer and other beverages cold, but have you ever wondered how they work? Some people may be sceptical of how a simple sleeve can be used to keep drinks warm, but the science behind it is not complicated. In this article, we share with you how koozies work to keep your drink colder for longer.
What Is a Koozie?
If you are new to koozies, it is basically a drink sleeve that fits around the bottom of a can or bottle. Although they are typically used to hold beer, any drink can or bottle that fits in the koozie goes, including non-alcoholic drinks. Koozies are known by many other names such as cosy, beer jacket, beer cooler, drink sleeve and more.
How Koozies Keep Drinks Cold
The most popular materials for reusable koozies are foam and neoprene. To understand how they work, you first have to understand the process of condensation. Condensation occurs when moist, humid air meets a cooler surface, such as the can or bottle containing your drink. When that happens, condensation droplets form. The more droplets there are on your can or bottle, the faster condensation is taking place and consequently, the faster your drink is warming up. A koozie slows down this process by preventing condensation from occurring.
Additional Benefits of Koozies
Koozies not only work to keep your drink colder for longer, they come with an array of other benefits:
- Keeps condensation off your drink, ensuring that your hands do not get wet.
- Serve as a protective barrier between your hand and the drink. We are all familiar with the cold feeling of wrapping our hand around a can or bottle straight out the fridge. With a koozie, you no longer have to experience the discomfort that includes tingling and numbness.
- When you leave a cold can or bottle on a table, inevitably, the condensation that forms will flow downwards onto it. Not only can this destroy the surface of certain materials such as wood, it can leave behind unsightly water rings. While some people solve this problem with a coaster, koozies keep your drink cold on top of preventing water rings, making them a win-win solution.
- Even if the surrounding temperature is not that high, you are warming up your drink simply by holding your drink. With a koozie to act as an insulation barrier, the process of warming up is slowed down even further.
With all the above benefits, it is easy to see why koozies are so popular.