How to Maintain 70% Humidity in a Humidor
- 1). Buy a hygrometer if the humidor did not include one. They are small and inexpensive, and can be found at hardware stores and department stores. Place the hygrometer in the humidor.
- 2). Add distilled water to the small humidifier supplied with your humidor according to the directions. This device has a foam pad and is designed to keep humidity levels in a suitable range. Do not use any water other than distilled, because tap and most bottled water contains minerals that can clog the humidor element, and also may contain organic material that can lead to mold.
- 3). Check the humidity level on the hygrometer in the humidor at least every two weeks. Add more water when the humidity drops to 65 percent.
- 4). Add propylene glycol if the humidity level is continually too low. Use one part propylene glycol to one part distilled water. Propylene glycol also is beneficial as a bacteria and mold inhibitor. Over the next several months, add distilled water when you need to bring the humidity back up to 70 percent. Do not add more propylene glycol unless the humidity level again becomes continually too low.
- 5). Add humidifying crystals to the humidor instead of the propylene glycol solution if you prefer. Follow directions on the jar.
- 6). Buy an electronic humidifier designed for large humidors and display cases. This device keeps humidity levels uniform with no attention on your part. Electronic humidifiers contain a microprocessor that regulates humidity, and some have a fan that circulates the air.
