I've had mixed results but all tests indicate it doesn't matter if the bag is on or not, some may argue the bag is an extra layer of insulation. I have found it negligible.
The real ice keeper is a good bin with good seals and no going in or out, if you want to use it for drinks etc then open it once, get what you need and close it. Its the in and out that kills it.
So I would take an extra bin for drinks etc and only enter the ice bin when needed.
Bookmarks