"Stu Pedaso" > wrote in message
...
> What does it mean when a yeast is said to be/or not to be
> "tolerant of concurrent malolactic fermentation"

Certain strains of yeast (Bayanus - e.g. EC1118) hog all the nutrients in
the juice/must, thereby depriving the ML bacteria of what they need to
propagate.

It is recommended to inoculate for ML after the wine has gone dry if using
such a strain of yeast.

Tom S