Should cheese be frozen?
I freeze cheese all the time, mostly mozzarella. It keeps longer. (If I keep mozzarella or similar cheeses too long in the fridge it gets moldy, often even before its expiration date.) However, I usually use frozen cheese only for cooking - i.e. if it's going to be melted. Freezing cheese does change the texture. Parmesan, though, being a hard, aged cheese would probably be less affected by freezing. However, on the same token, aged cheeses keep very nicely in the fridge, so I wouldn't see much benefit in freezing it.