HCM beads control humidity by establishing an equilibrium in your humidor's closed environment. The beads are preset to 65% RH and are designed to maintain equilibrium. The key point here is that your humidor must seal well (i.e., be a closed environment).
If your humidor leaks, all is not lost! There are things you can do with weather-stripping, silicone caulking, and other materials to seal your humidor. If your humidor is air-tight then you are good to go, and the beads will keep your RH at a rock-solid 65%!
Scott Shilala invented the HCM beads over a period of months and began selling them in late 2008. Since their inception the HCM beads have proven to be a big hit with cigar enthusiasts.
The following page contains the instructions for using and caring for your beads: Using Your Beads
Packaged beads:
We have a size to meet your needs!