I should add that there's a strong divide within the pipe community over the matter of humidification. Most of the guys here on Puff seem to favor the mason jar, tins or baggies with no added humidification (except light spraying with distilled water when too parched), as I do too. The article recommends using pipe tobacco humidifiers, but that might be something that gives more benefit to aromatics (some toppings may be volatile), as the Carey shop appears to favor aros over non-aros and English blends.
"Quite simply, my dear, tobacco is the greatest pleasure that we have ever discovered... I know of no other miracle like it in nature." -- Bela Lugosi, 1939
I think I will store my jars in the unfinished basement. Temps stay fairly constant around the upper 50s all year long. If it gets too damp, there is a dehumidifier. Plus the canning room has no windows, so no worry about sunlight. Not exactly the best man cave, but I can listen to my ipad and sip on my pipe.