@seishonagon Mix 10 g of your flour with 10g of water, cover loosely and leave in a warmish place for 24 hours. In the meantime, try to find some rye flour or some wholemeal. And in 10 days, you will need wholemeal and strong (i.e. High-protein >13%) white flour. Let's check in again in 24 hours. This could be fun.