Yeah, I always have my "substrate" tub will premixed ReptiChips in it. I just leave the top off and stir everyday for a few days to dry it out. Then put the lid back on. That when I need it, its already pretty dry and I can just mix a glass of water into it to get it right. Because we all have "those" batches where it was WAY too much water and you got steamed glass doors for days haha.