The Grove Bag company recommends using moisture meter, but I've found that the best way to use them is to first do a slow dry in a 60 degreeF and 60% relative humidity environment for ~2 weeks. Then, after trimming, do a traditional, Mason jar burping process. When the buds are stabilized at the humidity you prefer, transfer them into the Grove bag and heat seal it. Place that in a cool, dark place and forget about it for a few months. The Grove bags are able to take the Mason jar cure to the next level by slowing down the curing process even more. If the buds are 70% in the bags, then the bags are not going to work. But when you get the buds to a stable ~58% via the jars and then transfer those buds to Grove bag, the Grove bag will "regulate" the humidity within a very narrow range from there. I like them for long-term storage, but not for daily in-and-out use.
