Well, I (unintentionally) sanitized 2 ounces of lovely, fragrant 2012 Centennial last night while making a Two-Hearted Clone. Had just run sanitizer through the keg, forgot that I had about a quart left in the bottom of the keg. Popped the lid and dropped my sanitized paint strainer bag full of hops in without looking, closed back up. Realized there was an issue about 5 minutes later when I went to pick up the "empty" keg to fill up, and got way too much sloshing about. Dumped the dry-hopped Star-san into another bucket, and it came out a nice golden color with a lovely aroma. I kind of wanted to cry a little bit. Moral of the story = Star-san and Centennial do not mix. I have done 7 batches thus far where I have dry hopped, and aside from giving the hop package a good shot of Star-san from the spray bottle and soaking the hop bag in Star-san, I haven't worried about it and (thus far) have had no problems.