How would you describe audio mastering to a layperson?

Answer 1

Mastering is the final step in the music production process. It provides your mix with a final "shine" and prepares it for release by bringing it up to a competitive volume.

Answer 2

Recording - shopping for food/ingredients

Editing - preparing for the ingredients

Mixing - cooking

Mastering - delivery to the consumer (take out, fine dining, fast food, etc)