Re: Salt Calibration Questions
I do 24 - 48 hrs. You are not actually waiting for the hygro to respond but for the conditions in the container to level off. I dont use a zip lock for this reason. I use a an air tight tuperware and I place the container into a closet out of the sun and make sure my air conditioner is on. Spikes in temperature can raise RH by releasing more humidity from the medium.
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