What happens if you put too much yeast in bread?

Most bread dough needs yeast to make it rise, so the bread can be light and fluffy when it bakes. But can you put TOO much yeast in bread? What happens if you do? Do you get a bread balloon? We asked food scientist Dave Domingues to help us find the answer.Got a question that’s rising to the top of your brain? Send it to us at BrainsOn.org/contact, and we’d LOAF to help you find the answer!