I was thinking and a question has come up in my mind . I realize how important it is to make sure that everything that goes into your wort in sanitary to avoid infections, but what about adding dry ingredients either to your primary or secondary? If I wanted to drop a few star anise, some finishing hops, or what-have-you into my secondary, how do I know there's not some terrible hidden funk that I'm inadvertently sealing in there too? I'm sure there's a very simple explanation, but I don't know what it is.