ELI5: Why is it that a large, un-refrigerated bottle of liquid (juice, soda) doesn't get to that perfectly chilled point until after It's been opened? explainlikeimfive

I love cranberry juice. So much that i buy the 3 liter jugs of it. I can have it sit in my refrigerator for several days, but until i crack it open, it just doesn't get to that perfect temperature. Does it have to do with the pressure the juice puts on the bottle, or does some oxygen need to be introduced to the bottle to create an additional source of cold air? Is the plastic just too thick to allow the liquid to cool? what's up with this?

Submitted December 26, 2015 at 08:50AM by Davemaow http://ift.tt/1NGomr6 explainlikeimfive