this post was submitted on 31 May 2026
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Hi everyone! I suspect most of us here are headed for hotter days with summer starting shortly in the northern hemisphere. With climate change in full swing and El Niño expected to happen this year, I suspect it will be a very hot one. Now I love coding and programming, obviously, but the obligatory hoody and sunglasses - which we all weat while coding, of course - can make for an uncomfortable coding experience in the heat. How do you all cope? Do you combine the obligatory hoody with shorts, or maybe airconditioning? All tips are welcome!

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[–] ICastFist@programming.dev 1 points 3 hours ago

NightHawk has a video on how to make cooling packs that keep their temperature around 18ºC (64ºF) for something like 2 hours. He gives the ingredients around the 6 minute mark. It's a mixture of Sodium Sulfate with common table salt:

  • 5 cups water (1.2 liters)
  • 1 cup sodium sulfate (240ml)
  • 1/4 cup salt (60ml)
  • 4 tablespoons of xanthan gum (20ml) - this is a thickening agent so that the thing becomes gelatin-like, which makes it easier to work with
  • Mix in heated water for some minutes. The mixture should not fully dissolve, there should be some of it visible. If the sulfate fully dissolves, add more. If there seems to be too much of the mixture, add bits of water.

https://www.youtube.com/watch?v=Nqxjfp4Gi0k