I dont really know how long your supposed to leave it in for, the beer comes as a big plastic keg you pre chill in the fridge over night and then put in the draftmaster. It then pressurises it and keeps it chilled for weeks with a little heat exchanger on the back. The longest I ever had a keg last was about two weeks as I normally drink it empty quite quickly :oops: but even after a fortnight it tasted just as you'd expect fresh from the tap and chilled perfectly.
