I have a small open compost bin, it's now full with layers of brown and green. I read somewhere that I need to turn it occasionally (weekly is ideal), and that I need to keep a 1-4" layer of browns (shredded newspaper is good) on top to prevent bugs/pests/etc.
How do I reconcile these two? Turning it will mix everything up and will disrupt the layer on top. Do I need to then re-layer it on top? I didn't leave that much space.