So i peeped into my minibrew 5 gal. on Sunday and the krausen was very dense and firm looking. So much so that I felt like I could pull it out whole. There are no off odors, white patches or other funky stuff. I just has a thick pizza dough look to it. The batch was a 7 day old all grain pale ale, this is the second such batch with this appearance that I can remember. Any thoughts?