A milky crop is a chain of waits: 15 to 20 days of spawn run, 10 to 12 days of case run, then pinheads 3 to 5 days after mycelium reaches the casing top.
You need a dark room for the run and a lit room for cropping, clean chopped straw, a drum for hot water treatment, and casing soil prepared a week ahead. ICAR-DMR reports a biological efficiency near 100 percent, about one kilogram of fresh mushroom per kilogram of dry straw.

