A common technique when turning wood is to turn a green piece of wood, then store it in a brown paper bag until it is dry. The paper bag lets the wood dry slowly and uniformly, this reduces cracking and splitting.
The problems are: How long to store it? When is it dry? You cannot see it in the bag and commonly available moisture gauges only measure the surface of the wood.
I’m not sure how unique this is but I’ve found that by including a remote humidity sensor in the paper bag I can monitor the moisture, when the humidity in the bag equals the outside reading the wood is about as dry as it is going to get. No need to open the bag or to try to measure the moisture with inaccurate surface probes.
Also, by using the same procedure but using a plastic bag, the moisture content of any wood can be accurately and easily be determined.
These temp/humidity gauges are widely available at a low cost from sellers such as