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Calibrate Hygrometer w Boveda 72?

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Im feeling lazy and cheap. I have a small 72 boveda pack. Can't I just toss it into a ziplock w the hygeometer and see how close it gets to 72?
 
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I remember reading somewhere else that for some (scientific) reason, 75% is the proper calibration checkpoint. I would just get the Boveda 75 calibration kit and rest well.
 
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75 is what they send you when you spend the three bucks for a "calibration" packet, but i used a 72 that i bought and it worked just fine. IMO it doesn't matter as long as it is an exact measurement which the bored packs are. i did calibration on gauges and things like that in the Navy, its all the same. have a standard that is exact have the test instrument (your gauge) do the test and as long as it matches you are calibrated.
 

herfdog

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Yep. Ultimate calibration would include a much lower (30rh) and a much higher (90rh) but the devices we use don't have much distortion anyway. Its an indication. At set level, its precise. Farther than that, its less precise. If you could calibrate at the rh you prefer, with a known source of that rh, it would even be better.

But in the end, its just an indication.

Did you calibrate your thermomètre?
 

Craig Mac

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I've used all types of Boveda from 65 to 78 to check what my hygrometer is reading. If it's a point or two off I don't even worry about. They smoke just fine so I don't even care what the number is. We aren't flying rockets here, just smoking Cigars.
 
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75 percent is used because it's easy to do with salt and water. But most hygrometers seem to be off a bit when you start getting away from what they are calibrated at (when I take them out in the open air they can vary wildly), so it makes sense to check the hygrometer against whatever humidity you actually plan to use.

My hygrometers are all within 1 percent of the 65-69% Bovedas I use.
 
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I've used all types of Boveda from 65 to 78 to check what my hygrometer is reading. If it's a point or two off I don't even worry about. They smoke just fine so I don't even care what the number is. We aren't flying rockets here, just smoking Cigars.
I agree with you and when it gets to be that big af a worry it takes the fun out of it?
 
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