I was baking a cake the other day and thought I should use some of my whole wheat flour. I’ve heard many times that whale wheat flour would go rancid after a while. Since I haven’t used mine in a while I was a bit worried that it could be case. So, find a recipe that would use those. Sadly, a lot of German bread and bun recipes require various types of flour. I am not even sure if I could buy them all here. However, I stumbled upon this recipes which uses regular and whole wheat flour.