The date code is a series of letters and numbers that tell you how long the product will maintain its top quality and flavor. The letters represent the first three letters of a month (such as Mar for March or Nov for November). The numbers after that tell you the day of the month, followed by the year. For example, the code could read Jun 13 2014. This means for optimal flavor, texture, and quality, you should use the product by June 13, 2014.