How does red wine spoil?

White wine putridity is most frequently triggered by the growth of bacteria or wine spoilage yeasts in the red wine. These bacteria can grow in white wine if the wine is not effectively sanitized or if it is kept in conditions that contribute to their growth. The development of these bacteria can trigger the white wine to establish off-flavors and scents, and in some cases, can cause the red wine to become sour or unpalatable.

web link White wine putridity bacteria are typically aerobic, implying that they need oxygen to grow. The most typical wine putridity germs are acetic acid bacteria, which are responsible for the advancement of vinegar flavors in red wine.  explanation These bacteria convert ethanol (alcohol) into acetic acid, which provides the white wine an undesirable, vinegar-like flavor.  https://sakeradvantage.com/?p=2553 Acetic acid germs are discovered on the surface of grape skins and in red wine barrels, and can go into the white wine through contact with grape must or white wine that has not been effectively sanitized.

Red wine spoilage yeasts are likewise a typical cause of red wine putridity. Brettanomyces yeast is found on the surface of grape skins and in red wine barrels, and can go into the red wine through contact with grape should or wine that has actually not been effectively disinfected.

In order to avoid white wine wasting, it is important to practice good sanitation treatments when handling red wine. Saving red wine in conditions that are too cold or too warm can lead to the development of white wine spoilage microorganisms.