Hi all - I am attempting to brew my first batch of beer - Brown Ale from the Brooklyn Brew Shop. I have had the beer in the carboy for 2 weeks now sitting in the basement closet (the basement is set to 60 degrees). I noticed that there is still a lot particles floating around. Is this normal? Also, I wrapped a towel around the carboy to raise the temperature for the last week in the carboy. Good idea?