>> 10-4. >> reporter: his job is to get snow and ice off the roads in polk county, wisconsin. a few years ago he had a brilliant classic wisconsin idea. >> why couldn't we use brine water made from a cheese factory. >> reporter: that's what these bricks of mozzarella are floating in. it is basically salt and a little product. he test some product from the local cheese factory and found out that it works great for clearing roads. >> got the green light to go. and now we're running it in all of our trucks. >> reporter: the cheese brine is mix in with the salt which goes on to the road. it helps keep the salt actually on the highway and it is a perfect thing to mix with the salt because cheese brine doesn't freeze at low temperatures. it does, however, have a little bit of an odor to it. >> the roads smell like wisconsin. they smell like cheese. >> reporter: actually that is