Originally Posted by Airborneguy
Yes, but seal the keg with some CO2 or your effort with be worthless. I learned this the hard way after trying to naturally carb about 4 batches and getting nothing.
+ 1 I do this too, sometimes. I like the naturally carbed beer, the feel of the head seems tighter, creamier. As ABG says above, you need to seal the keg tight with CO2 and leave it at bottle conditioning temps (70F +). Also there will be sediment in the keg which will end up in your first glass or two.