One of the interesting things I learned about mozzarella cheese that is sold to pizza operators, such as the Grande mozzarella cheese, is that it gets better with age (up to a point, of course). In fact, pizza operators will complain to their distributors if the cheese is too "green"--because it performs poorly--and they don't particularly want to wait until the cheese "ripens" to use it. What Friz says about his use of his Grande cheese is consistent with the notion of mozzarella cheese ripening and getting better with age.
I recall Big Dave discussing this point in response to a pizza operator having received "green" mozzarella cheese from a distributor. I found Big Dave's commentary and have exerpted it (with some minor editing), as follows (in quotes):
"What your received was 'green cheese'. Mozzarella cheese ages in the polyethylene wrapper in the box. It never stops aging. It is usually shipped from the plant within seven days of production and, so, receives little or no curing in the cheese plant. Instead, aging occurs in the distribution channel and pizzeria. Aging time is often listed as 1-4 weeks, meaning that the cheese should not be used before seven days or after 28 days from date of manufacture. I suggest that the optimum usage window is 14 – 28 days. This assumes that the cheese has been maintained at 36-40 degrees F. Typically, the distributor receives the cheese that is 6-13 days old. So most pizzerias receive it at 13-20 days.
Green, young or underaged cheese will not perform at all. Notify your distributor that you will not accept delivery on nor will pay for any mozzarella that is younger than 12 days or is older than 28 days. No hard feelings. Just business. What happened is they underestimated their weekly useage and shipped out green cheese because they had to or because someone didn't rotate the older stuff to the front of the walk-in."
Of course, if one decides to freeze some of the mozzarella cheese, then its life span can be extended. But the stuff doesn't go bad in a hurry while it is in the refrigerator/cooler.