NEVER DRY IN A GARBAGE BAG, you need decent ventilation for drying or it will go moldy and smell and taste like shit. Dry it on screens or in the open..
plastic bags keep the moisture inside and it'll cause it to get funky, and not in the good way. Like blazing said, lay them out on a screen or just on a table or something. Thankfully, they don't take long to dry out.
1)You want to keep your moisture not too low and not too high. Too low will make it dry too fast making it taste like crap. Too high will make it moldy, so will a black garbage bag.
2)Airflow is important
3)Heat not too high, high heat will cause it to dry too fast.