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Is Yeast the Answer to Lower-Alcohol Wines?

zin1953 Jan 24, 2014 07:23 AM


  1. kaleokahu Jan 24, 2014 09:55 AM

    Yes, as is picking at the proper time.

    1. p
      pinotho Jan 24, 2014 12:14 PM

      <But by starting a fermentation with a non-Sacchromyces yeast and then adding Sacchromyces partway through the ferment, this “sequential inoculation” technique appears to have worked.>
      Many fermentations (perhaps most) in California start on their own. With a rigidly controlled fernmentation like they are talking about, seems like you would have to load up the grapes with lots of SO2 as they move from the vineyard to the tank. And, that doesn't seem like a good idea. I think there are natural ways to make wine with acceptable alcohol levels, as Kaleokahu points out.

      1. r
        Raffles Jan 24, 2014 12:43 PM

        Or just dilute the must....

        5 Replies
        1. re: Raffles
          pinotho Jan 24, 2014 12:47 PM

          dilute it with what ??

          1. re: pinotho
            zin1953 Jan 24, 2014 06:54 PM

            Jesus units.

            1. re: zin1953
              pinotho Jan 24, 2014 07:31 PM

              i never have quite grasped that....you let your grapes get so ripe that you have to add water........oh well, guess that's why others make wine, and I drink wine.

              1. re: pinotho
                zin1953 Jan 25, 2014 10:52 AM

                Short, simplified answer: ripeness is not about sugar; it's about flavor development. But flavors and sugars develop (relatively) at the same time, and so to obtain the fully ripen flavors within the grape -- and hence, the wine -- one is often faces with a grape that is higher in sugar than desirable.

                Drawback to Jesus units: the overall level sugar is lessened, but the flavors are also somewhat diluted. IT's *different* than not having the flavor develop in the first place, by picking earlier; the flavors are there, but less intense.

                1. re: zin1953
                  pinotho Jan 25, 2014 04:50 PM

                  an excellent explanation...and thanks for posting it.

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