White wine is an organic product and, as such, is subject to deterioration. wine spoilage can be categorized as "primary" or "secondary.".
Main wine spoilage is brought on by the growth of yeast and germs in the red wine. These microorganisms are naturally present on the grape skin and in the winemaking environment. https://ivfsurvivalguide.com/?p=303 If wine is not properly safeguarded from oxygen, the yeast and bacteria will increase, causing the wasting of the red wine.
Secondary wine wasting is triggered by the growth of mold on the wine. Mold can grow on white wine that has been saved in moist or humid conditions. Mold will not be able to grow if the white wine has actually been stored in an Optimum Storage Environment (OSE).
You can tell if white wine has gone bad if it has actually established an off-odor or if the color has altered. great post to read Wine that has spoiled will also have a flat taste.