Rotary cheese grater

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Restaurant-Style Cheese Grater
Pregrated cheese may be convenient, but if you aren't going to use the entire container within a week, it will probably start to go bad. The solution: a quality cheese grater (about $17) and a block of cheese.

How it'll save you: If you buy a half-pound block of, say, imported Parmigiano-Reggiano, aged two years (about $9), it'll keep in your fridge for up to three months, and you can grate however much you want as you need it. (Bonus: You'll score points in the authenticity department, since we've yet to meet an Italian who doesn't sprinkle his or her pasta with just-grated cheese.)