Im having a heck of a time getting an accurate calibration reading for my stinking hygrometers. Is it possible to use a cap full of 65% beads (half wet with distilled water) in a tupperware with the hygrometers and get an accurate reading? I am guessing that the RH should be 65% after 24 hours or so.
Will this work?
Has anyone tried this calibration method with success?
Thanks.
Tim
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The beads can emit or absorb humidity based on conditions, so I would do the salt test rather than a test with beads for a more accurate reading. :-)
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if you really want the easiest method get yourself some Boveda Calibration Kits. Not as cheap as salt, but they are only $3.00 and you dont have to fuss with anything.

My :-)
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I have used this method and agree it is easy and accurate. :-)
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That is the answer in my book as well:-)
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I did the Boveda Calibration Kit it was easier than doing any kind guessing. Well worth the 3 bones, clams or whatever you call them.
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I agree, the calibration kits are the easiest way to do it. You cant mess up.
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The salt calibration is far from difficult. In fact, you can easily be done days before your paid-for kit arrives in the mail. :-)
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:-) Really easy!
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Haven't tried it myself but it should work fine, as will any of the methods given. I might suggest you use a clear zip-lock bag. You can see the reading without opening the container.
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Well, the salt test is actually a calibration method that relies on some fundamental science. Its like using boiling and freezing water to calibrate a thermometer. The temperatures are known constants.

If you calibrate using the beads, than your hygrometer is basically calibrated using the same thing you're measuring. Its not independent.

Bob
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Excellent point sir :-)

I have been using the salt test on mine and have had no problems
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:-) I Used The Regular Table Salt & Never Got An Accurate Reading. Go With The Boveda Kit!:-):-)
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Thanks.

The salt test is one of those internet cigar mysteries. Some folks find it easy, others don't. So, there's nothing wrong with buying a Boveda pack. According to their website, its really the salt test. So, I guess you are paying for a premixed slurry. OK with me!
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Salt test is pretty easy, just think paste instead of soup and you're pretty much on the right track.
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