I purchased my beads already in the tubes from HF. To recharge them, I sit them on a side towel, spray them with DW, while rolling them for even distribution, and then wipe off the outside of the tubes before placing them in the humidor. I then sit a "gel jar" beside each tube to allow them to continue passively charging because what I sprayed on them will generally be pulled towards the center of the tube and the jars will then charge the outer layer of beads. After a week, the crystals in the jar are dried up and I take them out until the next time the beads need a hit (~6 months).