(Guest article contribution by: Dan Fauth)
If you’ve ever used a Hydro Flask, you are probably as enamored with this product as I am. Hydro Flask makes the claim that their containers will keep your chilled beverage cold for up to 24 hours and your heated beverage warm for 6-12 hours. By my experience, this is not an exaggeration. Imagine the pleasure of indulging in 40 ounces of ice cold beer at the end of a six hour hike into desert wilderness. In fact, don’t imagine it, do it! So good!
In this paper, I am going to reveal the secret of the Hydro Flask. In order to do so, I must subject you to a fair bit of science.
To understand what it takes to keep things hot for 6-12 hours compared to keeping things cold for 24 hours requires a basic understanding of thermodynamics. Sadly, much of…
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