- Our Black Walnut Medium Roast coffee is a luxurious, naturally flavored, medium roast coffee with Black Walnut Leaf, Walnuts and Rose Petals that you can enjoy hot or cold! The coffee connoisseur in you will truly enjoy the Black Walnut balanced flavor and aroma! - Ingredients: Medium Roast (whole coffee beans), Black Walnut Leaf, Walnuts, Rose Petals and Natural Black Walnut Flavor.