Does condensation usually form inside of a taped valve bag when allowed to fully defrost to room temp before opening? It seems that would be the only time in this process that condensation could be introduced. Maybe it does, and if so I would agree that re-freezing beans with condensation on them is not a good thing. I've never noticed any visible condensation on the beans when defrosting in this manner, but of course that does not mean it's not there.

Other than that, the freezing process I've described is pretty standard (i.e. transfer from valve bag to mason/canning jar). I suppose the merits of freezing in general could be debated, but that is not what I intended with this thread.

If you let them defrost it may not be much of an issue but getting a bag out, opening it, getting out what you want then closing it back up and putting it back in the freezer is where you will get condensation problems. If you let the entire bag defrost over night then freeze it again you are letting the beans age a day every time you get it out. After 3 or 4 times your beans will have gone stale. An observation I made back when we were doing the freeze testing is when frozen aged beans go stale, they go stale fast. You end up with little change, you go from fresh to bad in a day so you may want to take that into consideration with multiple freeze thaw cycles.

Dave, I'm 100% in agreement with you on the beans going stale after multiple freeze thaw cycles. In my case it would only be one freeze thaw cycle, since the beans would be going from sealed (from roaster) and taped valve bag, into the mason jar after defrosting, and remaining in the freezer in that mason jar until ready for use. There would be no multiple freeze thaw cycles of the mason jar because that entire jar would be kept out of the freezer and consumed within a few days to a week.

I usually get my beans 3 days post-roast, at which point they go straight into the freezer. It sounds like only one freeze thaw cycle will not cause too much degradation provided the beans fully defrost (i.e. no condensation) before opening the bag to transfer to the mason jar.

Thanks everyone for the replies!!