Use shelf-stable Parmesan powder (not fresh-grated or shredded) so the mix stores at room temperature. If your Parmesan requires refrigeration, either store the finished mix in the fridge or leave the Parmesan out and add fresh-grated when you cook the sauce.
For a smooth sauce: whisk the dry mix with a small splash of cold milk into a paste before adding the rest of your liquid. Adding everything at once over high heat is the main cause of a grainy texture.
Stored in an airtight jar in a cool, dry place, this mix keeps for 12–18 months. To extend shelf life, use a food-safe oxygen absorber and fill the jar as full as possible.
This helps absorb humidity and keeps powders from clumping.
Reduce Oxygen Exposure (Huge for Dairy). Oxygen = rancid flavors over time.
Best practices: Store in airtight glass jars (mason jars > plastic)
Fill jars as full as possible (less air space)
For long-term storage:
Add a food-safe oxygen absorber (100cc)