A:AnswerThank you for your inquiry. The Best Use by Date is a guideline for optimal freshness recommended by the roaster; it is not an expiration date. The pods are nitrogen-flushed and sealed for freshness and impermeable to oxygen, moisture and light. You can be confident that due to the superior packaging of the pod your Keurig® Brewer will yield a superior cup of coffee or tea. If you have any questions please contact our consumer care team at 866-901-2739. Our representatives are available seven days a week from 7:00 am to Midnight, Est.