I've got 2 oz of whole hops floating in my secondary right now. Should I stir (ok, not stir, but maybe "dunk") them every couple of days or so? Or is the risk/reward of contamination not worth it? Seems like almost half of them, even though they're wet, are just sitting on top of the floating hops and not even contacting my beer. I could have just used 1 oz and probably had the same beer/hops contact.