Does cheese go bad if it doesn't have a “use by” date?

I'm going to assume that the cheese has been refrigerated and doesn't taste particularly off. If it hasn't been refrigerated and tastes fishy or rancid, throw that sucker out. It may or may not make you sick but it's generally a bad plan to eat things that taste terrible. read more

That's actually a good sign; it means the cheese doesn't contain preservatives. Cut the mold away and eat the rest. Basically: aside from the fresh cheeses, cheese doesn't really go bad simply from age, and if there's other factors (eg lack of refrigeration) that have made it go bad the fact that your cheese tastes like crap should be a tipoff. read more

Cheese can go bad as it comes with an expiry date. American Singles (because they are EXTREMELY processed) can last 6 months+ without going bad. A block of Mozzarella will start to go bad in about 10 days. read more

Hard cheese will last the longest, but even semi-hard cheeses will last beyond their"best-by" date for the times listed in the table below. Cheese consists of the proteins and fat from milk and is produced throughout the world in hundreds of flavors, textures, and forms. read more