Originally Posted by Whalewang
...but starsan kills almost everything and Iodophor kills all bacteria so that is not an issue if you sanitize the cloth before it goes into the beer.
Well, I'd use a bag that is tightly woven mesh but you can use something else if you'd like. I use this weave: http://www.northernbrewer.com/shop/n...8-x-9-1-4.html
It contains the debris, but allows the dryhopping to permeate the keg. It has a drawstring, too, so I just sanitize, fill (not too full) and tie.
I always use a tea ball (or two or more) for leaf hops and a tightly woven mesh bag for pellets in the keg. You definitely want to bag hops, even pellet hops, in the keg. Your diptube is likely to clog if you don't!