Storing outside is perfectly fine as long as they are packaged correct. My Barefoots came on brandnew wood crates, the bottom had extra paper, each bag has plastic and around all bags was a super heavy duty plastic wrap as well. I have zero concern they would be effected even in the recent hurricane.
As for humidity of the pellet and the pellet being wood shredded in small and accessible pieces - would one not expect that their humidity equals air humidity pretty much ? Maybe the humidity/temperature of your air supply has more impact on the burn than the humidity of the pellet ? The few that are actually falling into the fire at each time ?
Pellets are no fire wood, old rules dont apply...
As for humidity of the pellet and the pellet being wood shredded in small and accessible pieces - would one not expect that their humidity equals air humidity pretty much ? Maybe the humidity/temperature of your air supply has more impact on the burn than the humidity of the pellet ? The few that are actually falling into the fire at each time ?
Pellets are no fire wood, old rules dont apply...