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The main differences between CF1 and CF2:

The layer of lees in the 50 gal tank is thicker and under greater pressure. This will increase the rate of yeast breaking down providing additional nutrients to the MLB.

The temperature may be a bit warmer in the larger tank.

The Flextank also allows micro oxygenation and the carboy does not.

Take a carboy out of the flextank and replace with the CF1 carboy.


The press wine being slower to complete ML may be related to the sugar content after pressing; press wine is often higher in sugar than the free run. Yeast fermentation will tend to dominate, and the press wine may continue to ferment sugar for several days or weeks before the ML really takes off. I would probably wait a while to see if the ML completes.


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