[ralferoo]

FWIW there's a good chance your fridge does more than that without you realising it if it's a fridge freezer. A lot of fridge freezers now have an anti-frost system that about once a week or so actually heats up the freezer so that any accumulated ice can melt, and then presumably blows out the damp air somehow (not entirely sure how that part works, other than just blowing the air up the the fridge and hoping the air there is dryer than the air in the freezer) and then goes back to regular freezer mode. I deliberately just an old-school fridge-freezer because having this defrost mode reduces the time you can safely leave things in the freezer for.