Mitch
BOM 2/09-Keeper BOTtLe
One pair, the way I fugre it, it's light and smoke two cigars at the same time, i picked fairly small cigars for that reason.
Myth Busters Relative Humidity
- Thread starter Mitch
- Start date
Your cigars are losing weight because plastic is permeable:
[ame]http://en.wikipedia.org/wiki/Intrinsic_permeability[/ame]
[ame]http://en.wikipedia.org/wiki/Permeation[/ame]
[ame]http://en.wikipedia.org/wiki/Diffusion[/ame]
[ame]http://en.wikipedia.org/wiki/Effusion[/ame]
In your experiment, when you weighed the plastic containers as time went by, that was a measurement of the plastics permeability. Additional (other than via permeation) mass (in this case, water, in the form of water vapor) cannot cross the boundary (the container) without the introduction of variability (opening the container).
The cigars will reach quasi-equilibrium with the local atmosphere (within the bag) with respect to %RH (quasi due to the rate of water loss due to the permeable nature of the plastic). The phenomenon that is lacking in your analysis is the dynamic behavior of the tobacco, which boils down to the hygroscopic properties of cigar tobacco leaf, or the mass-transfer characteristics of tobacco leaves. Tobacco’s cellular structure has known behavior as a function of temperature and %RH, read here:
http://www.journalarchive.jst.go.jp/jnlpdf.php?cdjournal=bbb1961&cdvol=48&noissue=2&startpage=439&lang=en&from=jnlabstract
http://www.springerlink.com/content/u124045332312x31/fulltext.pdf?page=1
You should also add a control step, in which you check your scale prior to every round of weigh-ins. Read the scales manual, it will give the sensitivity of the instrument, make sure it can detect down to its sensitivity threshold with consistent repeatability.
Enjoy your experimentation.
[ame]http://en.wikipedia.org/wiki/Intrinsic_permeability[/ame]
[ame]http://en.wikipedia.org/wiki/Permeation[/ame]
[ame]http://en.wikipedia.org/wiki/Diffusion[/ame]
[ame]http://en.wikipedia.org/wiki/Effusion[/ame]
In your experiment, when you weighed the plastic containers as time went by, that was a measurement of the plastics permeability. Additional (other than via permeation) mass (in this case, water, in the form of water vapor) cannot cross the boundary (the container) without the introduction of variability (opening the container).
The cigars will reach quasi-equilibrium with the local atmosphere (within the bag) with respect to %RH (quasi due to the rate of water loss due to the permeable nature of the plastic). The phenomenon that is lacking in your analysis is the dynamic behavior of the tobacco, which boils down to the hygroscopic properties of cigar tobacco leaf, or the mass-transfer characteristics of tobacco leaves. Tobacco’s cellular structure has known behavior as a function of temperature and %RH, read here:
http://www.journalarchive.jst.go.jp/jnlpdf.php?cdjournal=bbb1961&cdvol=48&noissue=2&startpage=439&lang=en&from=jnlabstract
http://www.springerlink.com/content/u124045332312x31/fulltext.pdf?page=1
You should also add a control step, in which you check your scale prior to every round of weigh-ins. Read the scales manual, it will give the sensitivity of the instrument, make sure it can detect down to its sensitivity threshold with consistent repeatability.
Enjoy your experimentation.
Last edited:
wescat,
He is using airtight Tupperware for this. I don't think that there is any air escaping the container, or new air entering it while it just sits there. I think there would need to be a significant pressure difference between the air in the container, and the air outside, for it to try to force its way in/out.
I've received a box pass that was in a large ''load n lock'' container, and it had a bit of vacuum when I opened it... I'm guessing due to change in pressure during shipping (air mail likely) These containers can hold their own, and with no outside force causing the transfer of air, I doubt that it's happening (with the exception of when the container is opened for weight ins etc...)
He is using airtight Tupperware for this. I don't think that there is any air escaping the container, or new air entering it while it just sits there. I think there would need to be a significant pressure difference between the air in the container, and the air outside, for it to try to force its way in/out.
I've received a box pass that was in a large ''load n lock'' container, and it had a bit of vacuum when I opened it... I'm guessing due to change in pressure during shipping (air mail likely) These containers can hold their own, and with no outside force causing the transfer of air, I doubt that it's happening (with the exception of when the container is opened for weight ins etc...)
I'm with you on having more questions now then before.
I drew the Opus #4 Pair... one of the 2 changed color in the time it was at temperature... It had a red tint to it, and was quite dark. Both sticks felt fine, but the experiment cigar had a tight draw, weird burn... and bad flavors.
I'll post more info when I get back from Nicaragua!!