Think I'll make a couple more. It works great. You can buy those hygrometers on eBay for around 4 dollars, so it doesn't break the bank. I cut the lid out with a dremel tool. Took 5 minutes or less.
I did the same thing last year. I thought it was pretty awesome myself. But I used reusable mason jar lids, the plastic ones with rubber seal. They weren't 100% airtight. I'll watch how these work for you. If you don't have problems, I'll know for sure it was the lids I used.
The cigar folks have a well established method to calibrate their hygrometers...see link below for the easy steps to test how accurate it is....or google it as there are many sites with the basic same method....just remember not to put too much water in the salt
Hell, I'm going to try it just for shits and grins.
Do it up. If it works, that info could benefit a lot of people. I would leave them in the wet cloth for a good couple hours to make sure they're all equally moistened.
So I ran it up to 99%, and but it back on the jar. It's been a couple of hours and it's back down to exactly where it was, so I'm assuming it was pretty accurate to start with.
Maybe so, do you have another one to compare it to?
No, that's the only one I have right now, but I'm going to order a couple more.
