Bob's Red Mill Vital Wheat Gluten Flour is a kitchen staple for whole-grain bakers and vegetarians! Gluten is the protein found in the endosperm of the wheat berry - the endosperm is milled into this fine flour, resulting in 75-80% protein. Adding Vital Wheat Gluten to whole grain breads or breads made with coarse grinds such as artisan bread loaves will improve the elsasticity and texture of the loaf. Vital wheat gluten can also be used to create meatless entrees such as seitan or used to bind other vegetarian items like "meat"balls and veggie burgers. You'll see how elastic the flour is just be adding water.