I ordered 8 x 62% Boveda packs (8g) with my last tobacco shipment. I put two in each of four 200g codger tins to help prevent them from drying out before I use them up, the original plastic lids are less than hermetic and I have no hermalique jars for storage at the moment. Can anyone give me an idea of the usable life of Boveda packs in general? I know I will find out but forewarned is forearmed.