Make all food stackable.
Make loaves of bread uneatable until cut into slices. Slices carry same value as loaves do now, maybe less.
This will cut down on having to make tens of ovens just to make an adequate amount of bread.
Or increase the amount of space in ovens. Loaves of bread arent the same value as in real life because you can eat 5 or more loaves of bread. Lets make ovens like this. Ovens in real life can even hold more than 4.