Unopened parmesan cheese still good past date?

While the "best by" date on parmesan cheese is a good guideline, it's not a hard and fast rule.

Here's what you need to know:

* Hard cheeses like Parmesan are generally very long-lasting. The hard texture and low moisture content make them less susceptible to spoilage.

* Smell and appearance are key. If the cheese smells off (sour, moldy, or rancid) or has a slimy texture, it's definitely gone bad.

* Taste is the ultimate test. If you're unsure, take a small nibble. If it tastes fine, you're good to go.

Here are some additional tips:

* Store it properly: Wrap Parmesan cheese tightly in plastic wrap or parchment paper, then store it in the refrigerator. You can also freeze it for longer storage.

* Check the texture: A hard cheese should be firm and not crumbly. If it's starting to get soft, it's likely nearing the end of its shelf life.

* Consider the age: Older Parmesan cheese can have a more intense flavor, which some people prefer.

Ultimately, the best way to tell if your unopened Parmesan cheese is still good is to use your senses and trust your judgment.