I am making my first cider and seem stuck on the fermentation stage. I used cider from a farm. I added 1 campden tablet per gallon for 24 hours to kill any wild yeast then added 2 lbs brown sugar and pitched in some wine yeast. It has been fermenting at between 65-67 degrees for a month. I still get bubbles out of the airlock every 5-10 minutes. The air from the air lock smells kind of like a freshly opened bottle of wine. I called a brew shop and they said a secondary fermentation can take place. Have any of you had this happen and is it a good thing. I was hoping to be drinking this by Christmas.