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Bacteria in winemaking - it's all about timing
Jun 19, 2013
(NewWorldWinemaker) - Being early is not always a guarantee of success, especially if you’re a mouse. Evidently, timing is critical. An example of this is gossiping about a colleague when he or she walks in (I never do this) or adding lysozyme to your must before co-inoculating with yeast and bacteria. As far as the latter example of bad timing is concerned, I know of a winemaker that did this. Suffice it to say, no MLF took place.
Timing is usually critically important in any winery, especially when it comes to the tiny microbes in your fermenting must and wine. The presence or absence of yeast and bacteria at certain stages of the winemaking process will ultimately determine the quality of your wine. For instance, a beer brewer phoned me a while ago and complained about bacterial spoilage of his artisan beers by lactic acid bacteria. I recommended Delvozyme® (a lysozyme preparation that Anchor sells locally) and have not heard from him since. No news is good news, right?
Another case comes to mind. A winemaker told me that he’s been involved in a long-standing feud with ubiquitous LAB that perennially invade his barrels of premium Chardonnay. The winemaker has since made a compromise, as a certain percentage of barrels are allowed to be annexed by the marauding LAB and the remainder of the barrels are treated with lysozyme. All the wine is eventually blended and the combination of wine with diacetyl notes versus more fruit driven wine has proven to be quite enchanting.
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