While drinking certain dark beers in the sun, I came to think about how to keep the beer cold until I finished it. Normally this isn't a big problem as I usually finish them before they get warm, but on really hot days this can be a problem.

Having some hardware lying around in my apartment, I decided to build something that could keep the beer cool. This is when the idea for the PeltierBeer came to me. Read on to see how I made it and how you can make your own as well so you can enjoy an ice cold beer in the nice hot sun.

Equipment List

Having an old Caffetiére, a two-way switch and a thermometer is a good start. This will help me measure the beer temp.

8x1,2V rechargeable batteries, a 1U cpu-fan, a 118w peltier cooler, a cold-plate, different types of glue and cables is an even better start (okay, I had to buy some of the equipment). Let's put this baby together!