Bread is the body, the structure. Wine is the blood, the vitality and mortality. So the yeast should be in the wine, not the bread, if you don't want to mix thi

Bread is the body, the structure. Wine is the blood, the vitality and mortality. So the yeast should be in the wine, not the bread, if you don't want to mix things up. Also, leavened bread does not stay fresh as long.