Which of these cheeses mold fastest American mozzaraella colby cheddar?

Out of those three cheeses, Colby is the cheese that will mold the fastest. Here's why:

* Colby: This cheese has a higher moisture content compared to the others, making it a more hospitable environment for mold growth. It's also typically not aged for as long as cheddar, meaning the natural enzymes that fight mold haven't had as much time to develop.

* American Mozzarella: This cheese, while not as dry as cheddar, is still relatively firm and has a lower moisture content than Colby. The moisture content, along with the lower pH (more acidic), makes it less prone to mold.

* Cheddar: This cheese is the most aged and has the lowest moisture content of the three. The aging process helps develop natural enzymes that inhibit mold growth.

Important Note: All cheeses will eventually mold if stored improperly. Proper storage, including keeping them in the refrigerator at the appropriate temperature and wrapping them tightly, can significantly slow down the molding process.