Hi guys. This is my first adventure in dry hopping since I usually make maltier beers. I had heard that swirling the carboy while dry hopping can help the layer of pellet hops sink to the bottom. Can swirling create off flavors in the beer? I gave my carboy a slow, easy swirl. I only had about 4.5 gal of beer in my carboy so there is a lot of head space. The green layer of pellet hops that had spread at the top of my beer slowly sank down to the bottom and all that's left on top is a thin white layer of bubbly foam. Is that normal? Did I do something to damage my beer?