If you have a humidor in which to keep your cigars in, you will need to maintain an internal relative humidity of 68 – 72% RH, and this is achieved by pouring a proper solution into the humidifier in your cigar humidor.
While you could drip in distilled water as a simple solution, the ideal way is to use a 50/50 mixture of distilled water and propylene glycol solution prepared specially for humidors. This mixture is sometimes known as an activation solution.
Propylene glycol is crucial as a chemical component in your humidifier and humidor in a number of ways:
- maintaining the relative humidity within the humidor at the optimum of 70 ±2% RH
- absorption of excess moisture
- inhibiting the formation of fungus and mould
- preventing the growth of bacteria
The Madelaine Propylene Glycol Solution
There are two variations commercially available – undiluted propylene glycol; and pre-mixed 50/50 mixture of distilled water and propylene glycol solution.
For ease and convenience, a pre-mixed solution contained in an easy-grip bottle with a flip-out spout is preferred, such as the Madelaine brand shown at right. After making my own humidor, I bought a bottle online. The Madelaine activation solution is a food-grade product recognised for its quality, and proven to get the job done as I have discovered after using it for almost six months (see last photo below).
The bottle arrived in a styrofoam-filled box, as I will reveal in the really unnecessary unboxing process below:
Cigar Humidor Solution – After 5 Months
As used and tested, the Madelaine pre-mixed solution was found to have performed well, with humidity maintained between 70 to 72% RH.
If you own a humidor or other cigar storage enclosure, the Madelaine 50/50 mixture of distilled water and propylene glycol solution comes highly recommended. It is naturally anti-fungal and inhibits the formation of mould and mildew, effectively preventing microbial damage to your cigars.
The bottle also comes with a flip-out spout which makes refilling your humidifier easy. Click the links below for purchase options for Madelaine as well as those of other reputable brands.