British Organic Dairy Co. Organic Extra Mature Cheddar Cheese is made with organic pasteurized cow's milk. Cows that have supplied milk for the production of this cut are free-to-roam and pasture fed. Consequently, Organic Mature Cheddar Cheese is bold and distinctive. Having been aged for at least twelve months, this Non-GMO product guarantees a more elevated cheddar flavor with nutty undertones.