This page on decarb might have too much info: https://wakeandbake.co/decarboxylating-cannabis-to-activate-thc/My friend is asking for decarb time and temp now lol guess his Google doesn't work
So last time I de-carbed cured bud in a jar with a tight lid in the oven at 240°F for 40 minutes. I think @Kyote recommended something similar.
I wonder if you used green bud if the jar would explode from the expanding water vapor?