[Joe]

The main issue with a Fridge is its meant to keep things cool, not actively chill them. Stuff in a fridge isnt supposed to emit alot of heat for long periods of time, so the compressor/condensing coil are all made to handle maintaining coolness in the fridge, and not actively trying to constantly lower the temp.

if you exceed what the compressor/raidator can take you will rish frying the compressor or causing it to over heat and shut down.

Besides for that there isnt too much of an issue with using a mini fridge.