With a cooler that big you may end up wanting more than 1/2# of beads. I went with 2# and see it go back to 65% very quickly after opening.
As far as the smell I had luck with hot soapy water and a Mr Clean Magic Eraser. Scrub it down and leave the door open for a day or so.
As far as the smell I had luck with hot soapy water and a Mr Clean Magic Eraser. Scrub it down and leave the door open for a day or so.