Based on the last Dreierbrot

My last bread I made according to the source with Rye, Spelt & Wheat.

I had a lot of the oats and I want to use it in sourdough instead of wheat flour. 

The experiment was not very clean, because my oven not accommodate to two loaves of bread, and one of them had to be in the proofers 1 hour more.

The result was a wonderful taste of bread! Do not be afraid to experiment :)