I’m getting ready to brew my first lager. There’s a big leap between homebrewing ales and lagers – ales ferment close to room temperature so they require very little temperature controls and monitoring to produce a good beer. Lagers on the other hand are a different strain of yeast that ferment primarily at a low temperature followed by a higher temperature “diactyl rest” to break down some esters before a long cool lagering process. The benefit to a lager is their crisp taste and clean clear beer.
Because of the equipment needed to control the temperatures at various stages in the process homebrewers usually stick to ale yeasts.
I built a simple lagering chamber as a project for my Raspberry Pi several months ago. Since then I haven’t really been buying or drinking very much beer so it sat unused.
This weekend I tried to get it back up and running only to find that the SD Card on my Raspberry Pi was corrupted and I had to set it up all over again. It proved more difficult than expected to get things back up and running smoothly. There’s still some work to be done on the controller to get it running correctly which I hope to finish tonight so I can start the primary fermentation later this week.