Does unopened, sweetened (with sugar) wine ever go bad?!

Question: Does unopened, sweetened (with sugar) wine ever go bad?
I have bottled wine from a year and a half ago, that my family bottled on vacation. We did add sugar to the mixture when making it. I have several unopened bottles. I was curious if the wine had spoiled from the sugar.. Please let me know what you know :) Thank you!


Wine is made with sugar, the yeast has to eat something, so I don't quite know what you mean by it going bad. If it is stored properly, it should last a very long time.

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