Starter is fed purely on 50% organic rye and 50% organic spelt. The rest of the loaf is made from box standard white bread flour. I don't know why I chose to feed the starter on rye and spelt but that's what it's been getting for close on 6 years. I make a loaf about once a week so my starter lives in the fridge. I don't like dark crusts, so I bake the bread for 50 minutes tops.