This is my first batch and my brew has been fermenting in the primary for the last 13 days since I removed the blow off tube. There is currently a bubble passing through the airlock every 2 minutes 11 seconds. At what point will my fermentation have progressed far enough that I can siphon the brew to a secondary containing my malt mixture and bottle it? All my book says is that I have to wait until there is no activity. Any suggestions? Thanks