<<Disclaimer: Verify this information before applying it to your situation.>> > I have a Hitachi machine. My bread always comes out more like egg > bread, rises and falls to a flat loaf with crust baking up on each > side. I'm no expert, but I've found that when the bread falls in the middle, it has too much liquid. Try cutting back a few tablespoons at a time until it stops sinking in the middle.