When the work day is done at his Tulsa-based business Trailer Refrigeration Service, Jerry Rackley often invites employees, clients and friends alike to take a load off and enjoy a cold beer. As a self-proclaimed expert, he felt like he knew the best method possible to chill down a case of beer. After all, he is in the refrigeration business. So, he admits that initially he was skeptical of the mythical performance of YETi® Coolers.
But after a while his curiosity got the better of him, and he decided to go ahead and try it out for himself. So he bought a 65 quart Tundra at his local YETi® dealer and went straight to the convenience store. He filled it up with 60 Coors Light beers, 20 lbs of ice, and two handfuls of Morton ice cream salt, and shut the lid. After 30 minutes, he couldn’t wait any longer. He opened the cooler and was astonished by the results. “We had slushy beers,” Rackley proclaimed. “I was amazed and a YETi® believer from that moment on.”
So how is this phenomenon of having slushy frozen still in the can even possible? The answer: thermodynamics. Normally ice forms when the temperature of water reaches 32 degrees Fahrenheit (0 degrees Celsius). When you add salt, that temperature drops: A 10-percent salt solution freezes at 20 F (-6 C), and a 20-percent solution freezes at 2 F (-16 C). So even though the icy saltwater slurry is still mostly liquid state, that liquid is actually supercooled below 32 F. The liquid completely envelops the beer cans, dropping their temperature below the freezing point of beer (which is mostly water anyways). The result is slushy beer.
While adding rock salt to supercool beverages, ice cream and more is nothing new, the major difference is that YETi® Coolers achieve those cold temperatures faster and retain them even longer. (NOTE: Several members of the YETi® team repeated the same experiment and are now themselves avid fans of the slushy beers.)
Using ‘YETI’ as a Verb
Now we have written before about the beautiful combination of beer and YETi® Coolers (see here, here, here), but Gerry has taken our vernacular to a new level. Where he used to “ice down” his beer, he now says that he likes to “YETI” his beer. He told us, “Slushy beer is the greatest thing in the world…The only bad thing is once you drink beer out of a YETI, you can’t drink it out of your refridgerator ever again.” Since the fateful day of his first experiment, he has bought 8 of our Tundra coolers… and counting.
So if you ever find yourself in the Tulsa area (especially if you need work done on your refrigerated trailer unit), stop by Trailer Refrigeration Service and meet “Professor Rackley” for yourself. If you’re lucky, he may just invite you to stay for a slushy beer.
Trailer Refrigeration Service
1518 North 75th East Avenue
Tulsa, OK 74115-4628