Giesen Sparkling Brut: Half our testers said they'd buy this one again ... but bad wine," one taster said. "This wine makes me wish I was drinking grape juice," said another.

The inventor, Thomas Bramwell Welch, called it Dr. Welch’s Unfermented Wine; the beverage would come to be known simply as Welch’s grape juice. If you’ve ever tasted Concord grapes ...