I've been popping the tins open about a week before smoking them. That seems to work pretty well.I must admit sadly, I never dry my tobacco. I am usuallly too excited to get to my pipe in my short window of time that the thought of choosing which blend(s) I am going to smoke that evening from which pipe already eats up enough of my smoking time. I am however going to make a concerted effort to remember to think about this earlier and put some out to dry beforehand. I suppose drying time can be blend dependent or real time moisture content specific. Is 2-3 hours prior satisfactory (generally speaking)?