Is it true that a koozie will keep your beer cold? If so, how does a koozie work?


Scientists actually studied this!

Koozies: Especially great for getting a good grip on beer. if you are a dog. Great for knowing which beer is yours when deciding on a beer. remove leaks — and especially when you need to tell someone, “Hold me a beer!” Keeps your hands dry during barbecue and hardly gets stuffy. daytime party Or simply feel the chill in your backyard. But most of the time they're great, because nothing ruins the mellowness of this kind of gathering more than a warm beer.

everyone knows the real point Coogee Probably to keep the beer cold. But has anyone actually looked into this? Does the tiny neoprene wetsuit for the Green Bay Packers' beer containers actually prevent the malt beverage inside from increasing in temperature, thus making it less likely to collapse over time? Has science provided a definitive answer?

Surprisingly: Yes!

So what does science have to say about this?

We're in America, damn, of course science has investigated this! In 2013, Dale DuranA professor of atmospheric science at the University of Washington, he published groundbreaking research (at least for the koozie industry) in 2016. physics today title”Condensation, atmospheric movement, cold beer” This really sums things up. It includes math equations and important words like “enthalpy,” but ultimately it has to do with how warm your beer gets on a hot day.

Cold canned beer inevitably warms up to the outside temperature, right?

In a sense. When you remove beer from ice water in a cooler, its temperature rise depends on the humidity and temperature of the outside world. However, it is not necessarily the outside temperature itself that has the biggest effect on the contents of a can or bottle.

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As humidity increases, what warms beer the most is latent heat, or in layman's terms, the actual condensation that forms on the outside of the can or bottle. Because it looks like it, we think of it as a bunch of water droplets, but it's actually a layer of water that acts as an insulating coat and gradually increases the temperature of the beer. The temperature will only stop increasing if the temperature of the beer increases.reach dew point.Them small drops In other words, the outside of a can or bottle plays a major role in the transfer of heat energy.

How long can beer be heated?

According to the authors, hot and humid days can have a significant effect. The layer of condensation is only 0.1 millimeters thick, but the can has a surface area of ​​290 square centimeters. This means that 2.9 grams of water is condensing on the outside of the can. On such a day, if 100 percent of this latent heat were transferred, it would theoretically raise the temperature of the beer, which was initially near freezing, by at least 10 degrees Fahrenheit or more. And that doesn't even take into account the heat that transfers from your hands when you hold it.

Where's the worst place to go out and drink a can of beer?

According to research, “the hottest and most humid conditions It occurs in coastal areas along the Persian Gulf and Red Sea. …According to our experiments, under these conditions, condensation forms on a can of beer that was initially around 0°C within 5 minutes, warming the beer by about 9°C. ” In other words, beer goes from near freezing to 48 degrees Fahrenheit in five minutes. gross! This combination of heat and humidity that ruins beer is why koozies are especially popular, if not essential, in the muggy South.

So, can a koozie keep your beer cold?

Yes, but it might not be what you think. It does not function like a cooler by trapping cold air. What it actually does is prevent condensation from forming on the outside of the can or bottle. Therefore, very little latent heat is transferred from the outside of the container to the beer itself.

Who was the genius who invented the koozie?

The details of such an important contribution are lost to the sands of time, but most people agree that it was an Australian man named Alex Lang in the 1960s or 1970s. It seems that. This idea may have come from Tea Cozy — knit Or the insulation that the British like to put on their teapots to keep them warm. Admittedly, the name “koozie” may have been later inspired by the tea cozy, but Australians originally called the koozie a “stubby holder” (thought to be a standard-sized beer bottle). (after the area's nickname “Stubby”).

So are koozies actually quite useful?

Yes, please take out what is in the back of the drawer. It actually works! Because when the only thing you care about is keeping your beer cold until the afternoon, your koozie has you covered.



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