Winter's coming on and my pop's is beginning to dry out (haha, yes I do keep the container closed), as it does get very dry towards the winter months. It isn't really running as much as it used to; it probably would not move much if I tilted it at all and left it for a day or two. What should I do with it? Should I introduce a slight amount of water, or just leave it be? Is dry rosin okay and normal?