When I attended welding school each student had to fix up a galavanized trash can for our electrodes (rods). Re-inforced the bottom with a couple of cross braces, cut several small holes, then wired it up for 100 watt bulb under the bottom. Easily held 7-8 50lb containers for the various rod types we used. The tight fitting trash can lid and the constantly burning bulb kept the rods dry and usable.
E6010 followed by the Jet rod were my favs, hard surfacing rods were the key for shovel bucket teeth and plows......ahhhh.....the memories!!
Rods with damp flux produced dirty, ugly welds that wouldn't hold very well.