If a wine is over-treated, it will show increased signs of oxidation. The wine may lose its vibrant and fruity aromas, may start to taste dull or flat and may also change in colour.Treated wine is best consumed within 24 hours.SO2GO is targeted toward younger wines, 0-10 years old, older wines often have used up the sulfites in the wine during the preservation process and are less likely to have high levels of sulfites remaining.