I keep reading about steeping... and I see "cool, dark place" mentioned quite a bit. Makes me doubt what I've been doing for the last month. Should I keep all of my juice in the fridge as general storage? Or is that too cool? I mean... it's winter, and I live in an upstairs apartment. Even if my heat isn't on, it's still not "cool" in here!!! Or, is cool only meant for steeping.