Miso Master Organic Miso is made using ancient traditional Japanese techniques, with hand-made koji and natural aging without temperature control. Miso Master Organic Miso is Certified Organic, Verified Non-GMO, Certified Gluten-Free, and Certified Kosher. Not only is it versatile enough for a wide variety of recipes, but as a LIVE, unpasteurized product, it contains probiotics and antioxidants.