[hopfenundmalz]

Ok, my lagers? I've had them stop bubbling in as few as 4 days. 5 is more usual. A long time ago I was in the 10 days 2 weeks length of time.

Lots of healthy yeast, O2, nutrients in the boil shortened the time.

[Myron Oleson]

Ok, my lagers? I've had them stop bubbling in as few as 4 days. 5 is more usual. A long time ago I was in the 10 days 2 weeks length of time.

Lots of healthy yeast, O2, nutrients in the boil shortened the time.

After reviewing my logs, the time in primary ranged from 6 to 9 days. Then the time in secondary before racking to the keg was 2 to 3 weeks. The beers always were quite good, based on my notes.

[a10t2]

In the absence of a flow meter, aim for just enough flow that  you can perhaps hear some bubbling and see a small disturbance of the surface.

In the absence of a flow meter, I would aerate instead. I don't add anything else to my beer without being able to measure it.

My preferred lager strain (W206) does have a "long tail", as do some others I have less experience with. Case in point, the current batch was at <5°P and starting its temp ramp on day 4, but didn't reach 1.7°P FG until today (day 9).