sorry to "un-hijack" this thread, but to answer the original question: YES, marijuana does lose potency over time, as the THC breaks down, etc, ... I recommend keeping it in a Mason jar, in the refrigerator ... if it is too damp, crack open the jar every day, for a few minutes, until it is where you want it ... if it gets too dry, place a small piece of lemon or orange peel in the jar overnite ... you get the idea ... :smokin: