I'm sitting at 57F and 77% humidity presently. Think those are suitable for letting them sit out in the open air?
Are you able to weigh in on what I'm looking for color wise? In my crop from 2020 I pulled them from the box as soon as all the green was gone, they were in uniformly golden yellow, and then hung them to dry. I'd post a reference for what I discarded but unfortunately they went in the green bin with the cat little.
My humidity swings up and down depending on the day, night or day, and the weather. I try to maintain around 70% humidity over three day blocks of time. Humidity can go up or down over 3 day blocks of time but try to average ~70%. I sometimes have to manipulate my micro climate (shop or garage) by opening or closing doors, turning on a fan, bunching leaves closer together if humidity low, spreading leaves further apart if humidity high, etc. I monitor temp, humidity, and weather forecasts. Its not a constant struggle but occasionally challenging. I box cured one time and forgot to rotate the leaves one day. Next day the leaves had areas of black (not brown, black) a spongy slimy feel, and would just fall apart when handled. Brown should be good, black not so much. After my limited one time experience I've been a little leery of box curing in my climate. It turned bad so fast, one little slip. In a dry climate great but my humidity swings around too much for me to try it again unless the weather turns wonky and I need to box cure to prevent drying green.
If what you are doing is working carry on, but it won't hurt to try hanging a few leaves for air curing. If that works out you can skip the box step and not have to shuffle the deck every day.
What basically needs to happen is that you want to keep the leaf alive long enough to turn from green to yellow (without drying green on one end - low humidity for too long, or rotting at the other end of the extreme - high humidity for too long). At that point you can go ahead and let the leaf die, turn brown, and dry out.