How Swiss cheese gets its holes is one of those questions that seems to stump a lot of people. Your parents probably told you that hungry mice chewed holes. Swiss cheese is a group of cheeses with holes in them. These cheeses got their name because they look like Swiss Emmental cheese. Swiss cheese is famous. Apr 17, Contrary to what you may have been told when you were a kid, the holes in Swiss cheese are not made by mice nibbling away at a big wheel of.