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How Does String Cheese Get Stringy?

string cheese
The first string cheese snack was made by Frank Baker of Wisconsin's family-owned Baker Cheese. servet yigit/Getty Images

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String cheese. It's one of the wonders of the world, right along with sea monkeys, male nipples and decaf coffee. I mean, what exactly is string cheese and how does it get, well, stringy?

Well the good news is string cheese is 100 percent cheese — mozzarella cheese to be exact. It's a combination of natural ingredients — milk, culture and something called rennet, which is basically an enzyme used to turn the milk into a thick curd. (Some mozzarella purists say the milk has to come from water buffalos that live in specific regions of Italy, but let's stay grounded in reality here.)

When making mozzarella, the curds are heated to 140 degrees Fahrenheit (60 degrees Celsius). Once it reaches that temperature, the milk proteins move around and line up together in a row. At this point, the cheese becomes stretchy and can be shaped into those mozzarella balls you see in the dairy section of the grocery store.

Now is where things get different: Instead of molding the cheese into balls of fresh mozzarella, the cheese is cut into strips and stretched and stretched and stretched some more. The first to do this was Wisconsin cheesemaker Frank Baker.

Although string cheese is 100 percent mozzarella cheese, it's not the same as the softer, smoother fresh mozzarella. The biggest difference between the two is that fresh mozzarella is kept in water or brine, and string cheese (which is made with low moisture milk) is dried out. Yum. Fresh mozzarella also doesn't keep nearly as long, and doesn't melt particularly well either, but many people prefer its taste and texture.

By the way, mozzarella is the only cheese that has the "stringy" properties to become string cheese. Cheddar and other cheese sticks in the grocery store are sold in similar packaging, but they are actually impostors called "cheese snacks."

So in a nutshell, string cheese is basically just super-stretched out mozzarella. So you can keep on including it in your kids' lunch boxes — guilt-free. Now what's in those individually wrapped orange cheese slices we can't say, and that's definitely another story for another day.

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