High Times published an article on making bubble hash, and they said that you should keep the sugar leaves wet. Don't bother trying to make hash from fan leaves as their THC content is wayy too low. They say to use only wet sugar leaves as this allows less green plant matter to find its way through the screens. I would suggest bagging up all your shake and freezing it immediatly if your not going to make hash asap. Freezing it would freeze all the moisture of course and no mold could grow in those conditions. Now if you're not farmiliar with making hash at all you take your least fine bag and fill it it halways with ice. Then add your frozen sugar leaves and stir. When you see a froth form, it's working. Then just filter it though all of your bubble bags and your good to go. The result is a delicious blonde looking hash.