Expiration & Storage Tips
When does parmesan cheese expire?
Unopened Parmesan cheese can last from 7 to 9 months, if stored in the right conditions. However, it's always good to check the 'Best Before' date on the packaging. Once opened, it can last about a month in the refrigerator, but quality may start to degrade after the first few weeks. If, however, you freeze grated or shredded Parmesan cheese, it can extend its shelf life to about 6 to 8 months.
How do you tell if parmesan cheese is bad?
To tell if your Parmesan cheese has gone bad, first look for any visible signs of blue or green mold on the cheese's surface. Besides, if it smells off or if the flavor isn't rich and savory anymore, it's possible that it has turned. Remember, cheese can occasionally develop harmless white crystals due to age, so don't mistake this for mold!
Tips for storing parmesan cheese to extend shelf life
• Keep the cheese wrapped in wax paper to allow it to breathe, then place it in a sealed plastic bag or container for refrigeration.
• Avoid storing Parmesan cheese near strong-smelling foods. It has a tendency to absorb odors.
• The harder rinds of Parmesan cheese are also perfect for adding flavor to soups or stews. Just throw the leftover rind into the pot while cooking!
• Remember to take out the portion of cheese you're planning to use about 20 minutes before eating, as the flavor is best at room temperature.
• Avoid freezing whole blocks of Parmesan as the texture may change. If you'd like to freeze it, grate it first.