General Category > Yeast and Fermentation

Secondary Fermention

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majorvices:
All bubbles in the airlock mean is that Co2 is coming out of solution, which is not necessarily an indication of fermentation. Rely on your hydrometer reading. When you get a constant reading separated by 3 or more days and a reasonable attenuation for that strain of yeast you are done!

hopfenundmalz:
I have seen that when the yeast go from sugar to the VDKs, that is secondary fermentation.

We use primary and secondary fermenters.

nateo:

--- Quote from: hopfenundmalz on January 06, 2013, 09:02:25 AM ---I have seen that when the yeast go from sugar to the VDKs, that is secondary fermentation.

We use primary and secondary fermenters.

--- End quote ---

What's a VDK? Volksbund Deutsche Kriegsgräberfürsorge?

erockrph:

--- Quote from: nateo on January 06, 2013, 09:12:30 AM ---
--- Quote from: hopfenundmalz on January 06, 2013, 09:02:25 AM ---I have seen that when the yeast go from sugar to the VDKs, that is secondary fermentation.

We use primary and secondary fermenters.

--- End quote ---

What's a VDK? Volksbund Deutsche Kriegsgräberfürsorge?

--- End quote ---

Vicinal diketone, aka Diacetyl and 2,3,-pentanedione

nateo:

--- Quote from: erockrph on January 06, 2013, 09:26:37 AM ---Vicinal diketone, aka Diacetyl and 2,3,-pentanedione

--- End quote ---

Cool. I thought yeast 'cleaning up' a beer might be considered fermentation, but I didn't know what it was called.

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