Ever BambooGUITAR Dehumidifier Kit with natural moso bamboo charcoal

Avoid these they do not work!!I purchased three packs of these to try out on three guitars. I used a temperature humidity data logger inside the guitar cases to measure any effect.Result........over a period of three days the humidity remained exactly the same with or without them at 61% even when the humidty of the room was controlled down to 50% by a dehumidifier in the room. The case was a hiscox case so there was a good closure all around.I had hopes that when using the guitars at a controlled room humidity, the bamboo charcoal packs would maintain this inside the case but clearly not. My next step is to try larger packs of silica gel which is considerably cheaper to buy and indicates when it is spent through a colour change.My considered opinion is that these bamboo charcoal bags are a gimmick that has not been tried and tested and I know through experiment does not do a thing to help with humidity in the case.

Easy to use and hope they will do the business of keeping guitars dehumidified! Only four stars as I don't know yet if they will work but if they do I will edit this later and let you know!!!