Salt test
 

I am still trying to get everything ironed out in my humi. I have been salt testing my hygros and i had a quick question. If the temp is below 70F which way does the RH go per degree below 70, up or down and how much?

Re: Salt test
 

I don't think you need to worry about it. They should be at 75 %.....don't worry about the temp.

Re: Salt test
 

If your hygro reads 75% when sequestered away in a sealed baggie with salt paste, then whatever your humidor reads will be correct,too, I imagine. If I was storing Have-annas I would be happy with 65-68. Your actual question can be found better with Google, I am not sure if everybody subscribes fully to the science all the time, except in extreme climates.