Test cook Julia Collin Davison shows host Christopher Kimball how to make the ultimate Whole Wheat Sandwich Bread, and science expert Guy Crosby reveals the problem with whole wheat flour. Next, gadget guru Lisa McManus reviews Pullman bread pans to see if they live up to the hype. Then, tasting expert Jack Bishop challenges Chris to a tasting of whole wheat flour. And finally, test cook Bridget Lancaster shows Chris how to make Broccoli Cheese Soup with lots of broccoli flavor.