Google Docs spreadsheet for the temperature profile Published September 28, 2012 at 1007 × 462 in BrewPi released! All source code online, a wiki, a forum, a bug tracker.. Let’s go! When BrewPi is running in profile mode, it follows a set of temperature points and interpolates the temperatures in between. You can edit this temperature profile as a Google Docs spreadsheet. When you click ‘upload profile’, it is stored on the Pi as a CSV file which is read by Python.