Originally Posted by Geelive
I have a hydrometer the one I used for the grow but I cant put it in the jars, or it doesn't matter ?
If it will fit, go for it, put it in there. but you can't use it for the grow while it's curing. I highly recommend a Caliber hygrometer, they are for tobacco and are the best quality and longest lasting I've found and they fit right into a mason jar. https://www.amazon.com/Caliber-Digit.../dp/B00JXOKQVW
They tend to be more expensive than no name hygrometers, but they are worth the extra cost in my opinion.