Transferring to Keg and Letting Sit

So I have a kegerator with two taps, and I have three kegs. If I have two beers already in the kegerator, is it cool to just transfer a third beer to my extra keg and set it aside until I run out of one of my other beers in the kegerator? Also, should I pressurize the third keg and purge the headspace of oxygen before letting it sit?

Yes. And yes. Transfer to your keg, pressurize it and let it sit until needed.

Sweet. Thanks!

It is always preferred to store it cold to reduce the degradation rate, so if you can keep it in a cooler space, you will be able to keep it longer than if it is sitting out warm!

Drinking it fast will also help…but you know that.

Awesome, thanks for the help!

As a little recent anecdotal evidence on it being okay: I brewed an irish stout back in February for a St Patricks day party that ended up getting cancelled, and then due to a lot of extenuating circumstances the beer sat in the keg until last month.  It wasn’t refrigerated, but was kept in a room that typically sits around 65-70 degrees.  This is a recipe I’ve brewed in the past, and there was no immediately noticeable difference in the taste.

I’m sure someone with a more refined palate than mine could find some flaws, but it’s still a good, drinkable beer.

EDIT: Obviously the outcome is dependent on style as well, as some get better with age and some worse(subjectively?).  Y.M.M.V