my apologizies for harsh words in other areas.
this is doing something of your own.

Well, you wrote the name of the bread, so I looked it up.
From: http://en.wikipedia.org/wiki/Burebrot

"The bread is made by mixing rye and wheat flour, water, salt, yeast and a leavening agent into a dough, which is formed into a round shape. After 70 to 90 minutes..."

70-90 mins isn't very long to me... They also use yeast. I guess it would be better to use the home made sourdough starter.

Anyway, knowing that carbs aren't essential in our nutrition, I guess my main question would be what is the reason for this bread baking "aventure" if one can effectively live on animal fat and meat alone? A hobby?

I sometimes add a teaspoon of IP6 to mine.
As breads go I love sourdough - and unlike other breads can feel like a meal in its self
I am having a go with a couple of .other flours too. In addition to rye and wholemeal/malted, kamut and spelt - spelt being my current favourite