I am in the prosses of my first brew. I just changed my brew (American Light) over from my platic buckett to my glass container. I have been VERY carefull as far as being sanitized. After siphoning the brew from the buckett to the glass there is a build up of about an inch of muck on the bottom of my plastic bucket. It doesnt seem rite. Havent read or seen it on any vidios I have watched. Can anyone fill me in on if this is ok or not and if not what did I do wrong?.