- Our Black Walnut Tanzania Peaberry coffee is a pleasurable, naturally flavored, medium-bodied Tanzania Peaberry coffee with Black Walnut Leaf, Walnuts and Rose Petals. You will enjoy the Black Walnut flavor and the bright Tanzania Peaberry coffee taste! - Ingredients: Tanzania Peaberry coffee (whole coffee beans), Black Walnut Leaf, Walnuts, Rose Petals and Natural Black Walnut Flavor.