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How does an insulated slim can koozie keep drinks cold?

How does an insulated slim can koozie keep drinks cold?

Whether you are out in the scorching heat of summer or those delightfully warmer days that can surprise you in the spring and fall, an insulated slim can koozie is the outdoor drinking staple you will love to have. Now, you might be wondering, “why would I keep a koozie with me when going outside?” What would I even spend my money on a koozie? Let’s find out.


What is a koozie?

A koozie is an insulated sleeve made of fabric that you can easily slide onto the bottom of a can or a bottle. The main purpose of a koozie is to keep your drink chilled even when you are out in the middle of the summer day.  


A koozie goes by many names and you might have already heard some of them. These include can holder, beer jacket, bottle jacket, coasties, can cooler, beer sleeve, coolie, coosie, and beer hugger. Regardless of what you call a koozie, it will keep your drinks cold even on the hottest summer days.


We know there is nothing more refreshing than an ice-cold drink on a hot day. However, as soon as you get the can or bottle out of a refrigerator or cooler, it is going to get warm in a matter of a few minutes and ruin all the joy you were looking to beat the heat with a chilled drink.


With a koozie, you will not only be able to enjoy the ice-cold drink but can also hold the can comfortably.


How does a koozie work and keep the drinks cold?

A koozie is designed to keep your drinks chilled by preventing condensation on the surface of the bottle. According to a study conducted by the University of Washington, relative humidity plays a bigger role in the heating up of a cold beverage than overall temperature. Humidity leads to the production of latent heat that occurs during the formation of condensation on the outside of a can. Hence, the researchers scientifically showed that a koozie keeps a drink cold not only by insulating the can but also by keeping the condensation from forming on its surface.


Did you know?

If you are outside in typical summer weather in New Orleans, the heat released by the condensation warms your drink by 6 degrees Fahrenheit in just 5 minutes. In case you are planning to spend your summer vacations in a place like Saudi Arabia or Dubai, condensation alone will warm your can from near-freezing temperature to 48 degrees Fahrenheit in only 5 minutes.


It’s really surprising to see that such a tiny layer of condensation of water on a bottle can cause so much warming.


What can a little koozie do?

You can use a koozie for various purposes, such as:

  • Prevents your hands from getting cold
  • Prevents your hands become slippery when holding a cold bottle
  • Maintains the elegance of your furniture by avoiding water rings
  • Keeps your cold drinks from getting warm (as we are saying right from the beginning)


Besides, a koozie has become a fashion statement due to the stylish appearance it imparts to your canned or bottled drinks.

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