Completely agree with the non-sterilization of bottles etc. Little Corbi is getting his teeth now, so we're weaning him off draft and onto bottles, and frankly as long as the bottle is clean I don't see what the problem is. I'm not going to give him a bottle that's had formula in it for several hours, but at the same time I'm not going to spend bloody 15 minutes boiling everything whenever he wants some milk.
Same goes for gluten, peanuts, all those other 'allergens.' I think kids are much more allergy-sensitive these days because people freak out about what to feed 'em. Even my wife, who is pretty on the level on all this sort of stuff, has reservations about giving him wheat products. I figure as long as we're not giving him rotten food, it's gonna be OK for him.
Of course we DO only go the all-natural route. Formula is organic, teething biscuits are organic, bottle is BHPA (or whatever it is) free. No refined sugars, ever.
For the OP: When I dry hop, I just throw 'em in there, no bag. I'm not terribly concerned about sediment, etc.