Odd results to humidity experiment

[Jimbo14]

[SIZE=3]Hey everyone,[/SIZE]

[SIZE=3]I was just stuffing around yesterday with my hydrometer and decided to do a little experiment. [/SIZE]

[SIZE=3]First I just placed my hydrometer on my bench to see what the rooms humidity was (55% RH). [/SIZE]

[SIZE=3]I then grabbed one of my Tupperware containers (which was TOTALLY dry) and placed the hydrometer in there with no humidification device. I put the sealed Tupperware container with the hydrometer in my cupboard. [/SIZE]

[SIZE=3]Eight hours later the humidity had increased to 67% RH with no humidification device![/SIZE]

[SIZE=3]Can anyone explain? [/SIZE]

Regards,
Jimbo14

[NCRadioMan]

Did you have cigars in there with the hygrometer? And is it an analog hygro?

[Jimbo14]

Its a digital Credo hydrometer (so very accurate) and I had no cigars in there. Just how stated in my first post.

[SeanGAR]

What were the temperatures the 2 times you measured the rh?

[NCRadioMan]

Originally Posted by Jimbo14

Just how stated in my first post.

Hmmm. I see nothing about cigars in the fist post.

Also, A hydrometer is an instrument used to measure the specific gravity (or relative density) of liquids.

Hygrometers are instruments used for measuring humidity.

In any case, it is very interesting.

[Jimbo14]

Originally Posted by SeanGAR

What were the temperatures the 2 times you measured the rh?

When it was in room air it was 25 c (77 F) and in the tupperdor it was 22 c (71 f)

[Scimmia]

Originally Posted by Jimbo14

When it was in room air it was 25 c (77 F) and in the tupperdor it was 22 c (71 f)

Well there you go, good call Shawn. Lower temp with the same amount of moisture is higher relative humidity.

[TonySmith]

could be the tupperware being a closed enviroment reached a certain rh and held at that point. The room having a much larger volume of air read read lower it could have easly read higher. It's easier to control a smaller volume than a larger. The main reason that humidor's need a tight seal.
There are many here more informed than me. I'm sure you'll get your answer.

[Jimbo14]

Yeah the tupperware container was very small. Im sure it has something to do with the amount of confined air/moisture.

Oh well it doesnt really matter anyway. It was just wierd.

Thanks for your input Radioman, Sean, Scimmia and Tony. Appreciate it all

[Mark C]

Originally Posted by Jimbo14

Yeah the tupperware container was very small. Im sure it has something to do with the amount of confined air/moisture.

Nah, got nothing to do with size, and everything to do with temperature. If you feel like another experiment, do the same exact thing as you did before, then take the tupperware out of the cabinet and set it on the bench. Ought to read the same as it did originally.