I searched the Internet for a sourdough focaccia recipe but couldn’t find one that was satisfactory. They all used US cups and tablespoons that don’t translate well to other countries. A US cup holds 237 mL whereas an Australian cup holds 250 mL. Not only that, but the amount of flour in a cup depends on the type of flour and how tightly it is packed. All bread recipes should be expressed by weight, except where it doesn’t matter much (eg salt).