Hearty breads are a type of bread that is made with whole grains, such as rye, and are usually denser and more filling than other types of bread. Rye breads are a type of hearty bread that is made with rye flour, which is a type of flour made from the grain rye. Rye breads are popular in many parts of the world, including Europe and North America. They are often used in sandwiches and can be served with a variety of toppings.