Our last round of meat chickens for the year are arriving next week. Fermenting isn't something we have tried before, but I have recently heard about it and am very excited to try it. How far in advance can I start the fermenting process? They should be here next Wednesday. So I can I start the feed today or tomorrow, or should I wait until the weekend. I heard it only takes 3-4 days to be ready. We are going to be feeding them fryer grain from a local grain Co-Op store. Thanks!