Soup cooler - Suppenkühler

It's a soup cooler - a thing the world does not need ... The idea came up after my son did not want to eat his too hot soup (I do not like it either).
Since I have lots of fans, 3D printer and a power bank, I thought to myself - why not ....
It's a 80mm / 12V fan ... the powerbank only delivers 5V - the fan is slow which is not as efficient as 12V, but safer and easier to use for the kids. It's probably more placebo (because of the 5V) but the soup is colder and tastes better after using it (according to my kids) and I have to print one more because they always argue who can use the thing first.

P.S. My powerbank has 4 USB ports .... I will solder a second USB cable to the fan - which should then run with 10V (unless I have an error in reasoning).


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Es ist ein Suppenkühler - also eine Sache die die Welt nicht braucht... Die Idee entstand nachdem mein Sohn seine zu heisse Suppe nicht essen wollte (ich m