Love the wood box making, very nice, Rusty. And the idea for the pump with the jars sounds good. It seems like you already have the right idea - timed air pump to the jar. But the idea of a humidity and temp controlled dry box is what I have been thinking about lately (and how I found this thread). I have a few ideas that I think would make it work nice and would require very little components (a.k.a cheap to produce). Let me know if you want to try building something like this for production.