Bob's Redmill products are specifically designed for those who connot/ do not eat wheat/gluten. They are regularly batch tested to ensure the product remains gluten free.
This all purpose flour can be used instead of the usual baking flour you might use in a recipe. It is recommended that xanthan gum be added to flour for best results. It acts as a binder (which would usually be the job for gluten). The Bob's Redmill packet indicates quantities of xanthan gum required for standard baking recipes. Bread recipes may also require eggs, vinegar and extra water for best results.
NB: For UK and European customers - The expiry dates on Bob's Red Mill packets are written in American order. ie, Month/Day/Year. (for example, 11/02/14 means 2nd November 2014).