McCormick Non-GMO Gluten Free Pure Mint Extract, 1 fl oz Box. Love the refreshing taste of fresh mint? Try McCormick Pure Mint Extract! Made without any artificial flavors, artificial colors or corn syrup, it’s a convenient way to bring delicious mint flavor to smoothies, cocktails and baked goods. It’s also non-GMO and gluten-free. This McCormick Pure Mint Extract is in a Plastic box that is 1 fluid ounces. Store this shelf-stable item at an ambient temperature.