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Thanks everyone for the views and comments. I think what I am going to do is make another batch of the same beer as the one that is almost finished fermenting and for the 2nd one I will ask the BrewPi to keep the wort at a fixed temperature and then compare it to the current beer that was with...

Thanks, this makes sense and for the next brew I will get it to use the FV temperature as the one to keep constant. :)

Thanks for the reply. This is what I think I will do with my next brew. Just for interest, I've attached the graph for the current one where I had the fridge set to a constant 20 degrees. Green is the wort, blue the fridge and grey the room. You can ignore the leftmost peaks as that was me...

Yup, the algorithms are pretty clever. When you look at the graph it looks like it overshoots a lot but when you actually look at the data points, it is only going over and under by 0.23 degrees which is perfectly fine and to be expected :) I am quite impressed with it so far.

Thanks for the reply. I did have a quick search and didn't see anything relevant, but I will have a more prolonged search later. I totally agree with what you're saying regrind the short cycles and indeed is what I see - although the hysteresis is not as bad as I thought it might be thanks to...

Hi all, I have been brewing now for 3 years and have always fermented in a cupboard that has a stable temperature of 20 degrees C. But due to excessive geekiness, I decided to make a brewfridge using a raspberry Pi and kit from BrewPi. It's in an old under-counter chest freezer which can...