It is very difficult preserve the terpines in the plant. Just hanging will remove the moisture but more is needed to preserve the terpines. When the plant first seems dry you put it in jars. Then breath the jars a couple of times a day or some folks say every couple of days. I have seen a lot of information on this but I haven't seen specific steps like:
Put initially dried weed in jar
Open jar every 12 hours and breath weed for 2 hours or other specific details.

It may depend on the weed itself. If you have airy buds like Sour Diesel that will probably need a different process than very dense buds like Purple Kush. I would like to see the specific details layed out. Is there a standard process that will preserve the terpines for any type of weed.