We just bottled our first batch, and I have a few questions. Our fermentation started quickly and bubbled fairly consistantly but only for a day or two. Also, when we were bottling there was a layer of yeast at the bottom of the fermenter. I have heard that this may cause bad odors or flavors. Is all of this normal and is there something that we could do on our next batch to make it better. It has been 10 days since bottling, when do we need to refrigerate? Otherwise, the beer already tastes very good and has a good bit of carbonation.