Natural / spontaneous ***yeast fermentation*** processes were always used

sources:

How To Make Great Homemade Wine From Grapes - There are many types of grapes to choose from, such as Merlot, Cabernet Sauvignon, Pinot Noir, Pinot Chardonnay that were brought over ... My Italian brother-in-law has always used this natural method successfully for making his homemade ... The fermentation process is the yeast converting the natural sugars into ...
www.greathomemadewine.ca/hw/Grapes.html -

Yeast and Alcoholic Beverages: Beer, Wine and Liquor - It's truly a natural drink and its origin probably preceded beer making. .... Century that it would be known that yeasts were the organisms that actually ... Although the process of fermentation had been used for thousands of years, ... of these cells always resulted in production of lactic acid fermentation and an ...
www.botany.hawaii.edu/faculty/wong/.../lect14.htm -

How wine is made - making, history, used, steps, product, industry ... - As a natural process, the frosty-looking skin of the grape, called "bloom ... can affect the quality of wine, and proper ageing does not always ensure quality. ... In 1697, European cuttings of Vitis vinifera grapes were successfully ... 5 During the fermentation process, wild yeast are fed into the tank or vat to ...
www.madehow.com/Volume-1/Wine.html -

[PDF] Wine yeasts for the future: PDF/Adobe Acrobat - Quick view
GH Fleet - 2008 -
by yeasts is a key process where winemakers can creatively engineer wine character and value through better yeast management ..... ***production: spontaneous or natural fermentation*** or starter .... the data are not always consistent (Martini et al., 1996; Jolly ..... (2003) successfully used S. pombe entrapped within ...
depa.pquim.unam.mx/.../Wine_yeasts_for_the_future_7294.pdf -

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Note added at 16 mins (2010-08-01 15:18:55 GMT)
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additional sources:

History of beer - Wikipedia, the free encyclopedia - The discovery of yeast's role in fermentation in 1857 by Louis Pasteur gave ... His process was introduced in the US and UK, but is now used for ... of beer, ranging from ancient styles such as the spontaneously-fermented ... The cups in Ægir's hall were always full, magically refilling themselves when emptied. ...
en.wikipedia.org/wiki/History_of_beer -

The birth of Lambic - At this point, the brewing process is complete, and fermentation -the ... The result of this method is that wild yeast cells, which are always in ... Due to the spontaneous fermentation, Lambic is a seasonal beer, ... Long before hops were common in most beers, various fruits and herbs were used to season beers. ...
www.lindemans.be/start/lambik/en -

...rather than yeast-inducing.

Yeast-induced hyperalgesia; Prostaglandin formation; Opioid.
joi.jlc.jst.go.jp/JST.JSTAGE/jjp/81.94?from=Google

Once the yeast is gone from the intestinal tract, the yeast induced inflammations on the skin clear up. The way to clear intestinal yeast is to change food ...
www.nutritioninstitute.com/Psoriasis.html