1.Combine yeast, whole wheat flour, all purpose flour, baking soda, salt, honey, oil and sour milk into pan or bread machine.
2. If baking in bread machine use medium temperature setting.
3. If baking in oven, use manual or dough cycle to knead dough. Remove, from bread maker and place in a greased loaf pan. Let rise until doubled in size. Bake in a preheated 350 degree oven for 25-30 minutes or until bottom of loaf sounds hollow when tapped.