Based upon a Facebook post, I just checked all of my dozen or so bags of various Esoterica blends. More than half aren’t really sealed. If they’re not hard, be suspicious. The primary point of failure is in the corners where the gussetted sides form four layers. The dates on these bags span a period of about the last year, but I don’t have any older than that, so I would simply recommend that you check every bag you have. Fortunately, the tobacco feels okay still, so I have caught it in time, probably because the bags have been stored with the top part of the bag folded over the full portion of the bag.
