The term 'Sandwich Loaves' refers to a type of bread that is commonly used for making sandwiches. Rye bread is a type of sandwich loaf that is made with rye flour and is characterized by its dark color and slightly sour taste. Rye bread is popular in many parts of the world, including Europe, North America, and the Middle East. It is often served with deli meats, cheeses, and other sandwich fillings.