Pac Togo heavy duty disposable aluminum foil rectangular loaf pans. Wide selection of various sizes available for you to choose. OU Kosher Certified. Proudly Made in the USA with American sourced materials. Its function is to shape bread while it is rising during baking. The most common shape of the bread pan is the loaf, or narrow rectangle, a convenient form that enables uniform slicing. The bread pan is made from a conductive material such as metal which might be treated with a non-stick coating. It can also be made of heat-resistant glass, ceramic, or a special type of paper that sticks to the dough but is easily removed, once cooked. Bread pans are found in a variety of designs and sizes providing the baker with different possibilities not only for baking bread, but also cakes and puddings.