Good Afternoon,  thought I would see if anyone has any idea why this keeps happening to my whole wheat bread.  Its driving my absolutly batty!!  I have tried wetter dough with some success, cold rise, warm rise,, dough enhancer,, instant yeast, traditional yeast, two rises, three rises (although I dont like three rises on my whole wheat bread as the third rise ussually is fairly grim) and I get this monster cavern down the middle of my bread. Given the shape of it, I tend to think that it may be from forming and the dough is dry so doesnt stick together very well (shrug).  I mill my own wheat flour, and the less white flour I add to the recipe the more I get the big hole.  I would love any advice on baking whole wheat bread.