Why your Costco milk is lasting longer than what the expiration date says
The reason Costco milk doesn’t spoil after its expiration date
- Costco's Kirkland-brand milk is reportedly lasting significantly longer than its printed expiration date, a phenomenon noted by customers.
- This extended shelf life is attributed to Costco's exceptionally rigorous testing and quality control standards, which exceed typical FDA requirements.
- Suppliers face strict annual unannounced audits, and every milk batch undergoes approximately 60 microbial tests, with any failure preventing shipment.
- The quality of water used in processing is closely monitored, and milk from healthier herds with lower somatic cell counts is preferred for its longer fridge lifespan.
- These stringent measures contribute to reduced food waste and increased customer satisfaction due to the milk's prolonged freshness.