Originally Posted by duboman
Quit looking at bubbles, while it will give you an idea about what's going on it in no way determines anything really, it's just a vent!
After 7-10 days take a gravity reading, then take another 2 days later. If they are the same then you have confirmed FG.
I agree that looking at bubbles does little for you, but it is an indicator of the speed of fermentation taking place. One half of the sugars will turn to CO2.
When I brew it is an indicator that reassures me that everything is going as it should.
I agree that taking a reading on gravity is the book answer on seeing when your beer is ready for kegging or transfer to secondary.
At the same time, I would say that if the OG of the beer was 1.55 or less then leave it on the yeast cake for three weeks and don't worry about it.
For the following reasons:
1. It won't affect the taste.
2. If it doesn't ferment all the way because of pitching rate or poor temp control, then there is nothing you can do about it.
3. Why risk contamination?
If you are going to put the beer on something in the secondary then I understand. Otherwise, less work is simple and good.
Wait three weeks and then keg or bottle it.