Add mixed multi-grains to a stand mixer and pour boiling water on top.
Let the mixture cool for about an hour until it reaches room temperature. Mixture should thicken and become a little soupy
Add the rest if the ingredients to the mixer and knead with the dough hook on medium speed until the dough comes together, this can take a very long time, sometimes up to 20 minutes. Dough should be very elastic and not break apart easily when stretched
Cover and ferment until doubled in size (I usually do 6 hours)
Oil a 9×5 inch loaf pan.
Shape by rolling the dough flat into a rectangle and rolling it up and placing into loaf pan.
Cover with a towel or plastic wrap for 2-4 hours at room temperature, or until doubled and fluffy above the brim of the pan.
Preheat the oven to 375 degrees. Bake for 45 minutes, or until golden brown on top.
Allow to cool completely before slicing. The top may feel hard after baking but it will soften after cooling