I recently started a compost heap made up of veggie/fruit scraps, egg shells/cartons, dried leaves from fig tree, grass clippings. I've read a bit on the subject(what it needs for it to reach a certain temp for the heap to decompose, waterings, layering), and I know it also needs oxygen for the right temp and faster breakdown. And I'm wondering, how often do you turn your pile? Once a week? Twice? Thanks in advance