Consider the actual crust when interested in purchasing a bread machine. Some people have strict preferences regarding the crust. Those units with aluminum pans will usually make a thin and lightweight crust. On the other hand, cast aluminum pans will make the crust thicker and darker. Of course, there are plenty of exceptions as well. But then, this is what you should expect from the pan based on its material. If you do not like thin crusts, you might want to avoid lightweight pans then. Double check the best reviews regarding these bread makers as well. You would be surprised by how many things you will discover.