Based on this Chill Pill video, there is claims out there putting any item in a non-powered fridge auto-magically "reverts" the item to 20 degrees.  Put all the automation in that video aside, run a test in your game where you have a duplicate put an item into a fridge that "automatically" change the item to 20 degrees. This core "Broken - reverts to 20 degrees" exploit in that Chill Pill is just not occurring. The pill will "cool" down in a Normal not exploit heat exchange is my observations in