Here are my steps with cuttings:
1. Clean with toothbrush and dawn soap to remove dirt and anything that will grow mold.
2. Then dip cuttings in a 10% bleach solution, then set a side to dry.
3. Once cuttings have dried (maybe 15 minutes), I then put the cuttings in damp spaghnum moss (misted with a squirt bottle). I have found a correlation between mold and the cuttings touching the bag, so I try to put all my cuttings in oversized (gallon or bigger) bags smothered in damp moss.
4. I only put in the same type of cuttings in the same bag, never mixing varieties in the same bag. I write on the outside of the bag the type of fig in permanent marker.
5. After the cuttings are in the bag with the damp moss, I deflate the bag (squeezing the air out) and put all the bags inside a dark canvas bag.
6. I put my canvas tote bag upstairs in a spare bedroom (sitting on the bed) but underneath a blanket to avoid light hitting the bag directly.
7. I check the cuttings about every 4 to 5 days.
Thats what I do and it works well for me.
Once the cuttings show signs of roots, I then will plant in cups with 100% Ultimate Potting Mix and put inside plastic tubs with cracked lids for ventilation. These tubs will sit in the same spare bedroom upstairs on the floor and they are exposed to the sun as it comes in the windows. I only water as needed which runs about 3-4 weeks. I don't fertilize at all the entire first year.