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Last post 6 years ago by CamoRoon. 4 replies replies.
Relative humidity question
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CamoRoon Offline
#1 Posted: Tue, Mar 27 2018, 7:11 AM EST
Joined: 03-04-2015
Posts: 153
I know this question gets asked a lot and there seems to be a lack of agreement but in regards to humidor humidity, RELATIVE HUMIDITY is humidity relative to what the air can hold at a given temperature. Therefore, at 70/70 there is a certain volume of moisture in the confined space. If the temperature of the space is at 67 degrees instead of 70, the relative humidity in the space with the same amount of moisture should read 78%. The room where I have my humidor is usually in the 65-68 degree range so am I correct that my hygrometer should be reading in the 75-83% range such that if the temperature were to rise to 70 my RH would be 70%?
dstieger Offline
#2 Posted: Tue, Mar 27 2018, 7:40 AM EST
Joined: 06-22-2007
Posts: 10,889
Thunder.Gerbil Offline
#3 Posted: Tue, Mar 27 2018, 8:39 AM EST
Joined: 11-02-2006
Posts: 121,359
Too funny, Dave. I saw this thread before you posted and though "Too bad Justin isn't posting anymore, he had all of that figured out"

I had forgotten all about that particular thread where he explained it.
CamoRoon Offline
#4 Posted: Tue, Mar 27 2018, 4:00 PM EST
Joined: 03-04-2015
Posts: 153
VOILA! That is exactly what I meant. My guess is that the scenario he was questioning is really caused by dryer air caused by either winter heating or summer air-conditioning. Air-conditioning condenses moisture out of the air and also out of your humidor through the wood and air leaks just like heating your home dries out the air in the winter. So, the better explanation of desirable storage conditions is "the percent of moisture per cubic inch of storage space should be equivalent to that achieved when the temperature is 70 degrees and the RH is 70%" Therefore higher RH is required at temperatures below 70 and lower at temperatures above 70. We are not chasing humidity, we are chasing a volume of moisture per cubic inch of storage space and the measurement of that is a figure that varies by temperature in the space.
Is it then better to have one's humidor reasonably full at all times? I doubt that moisture enters or leaves the cigars as fast as it enters or leaves the air around the cigars. It seems that more cigars would make for a more stable environment once the proper humidity is achieved.
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