either put em on a screen as doobies told you or if you got time on your hand freeze them, till the mercury doesn't drop below -81°C, and a normal freezer won't get you even close, keeps water evaporating but mold has not a chance which is hand with big loads of leaves
so if you got time or bulge loads of fan leaves on your hand think about this one maybe.
besides, to dry them in a oven is not a bright idea if someone should tell you this one, it will evaporated your THC too
but in a freezer it will stay untouched