So I've had this stored away for about 2 months in my closet, and yesterday I noticed that there seems to be crystals that have formed inside the liquid. Also, the liquid has hardened now and I'm wondering if either reaction is normal when storing it away and what caused the crystals to form? It was only mixed with a very small amount of PG. Was it a bad idea to store it in my closet? It does seem a bit hotter in there compared to the rest of the house. I guess what I really want to know is whether or not these crystals are safe to smoke and if these reactions will have caused any potency loss?