RENEE MONTAGNE, HOST:
Good morning. I'm Renee Montagne. Turns out the cool bottom of the sea is a great place to preserve champagne. One-hundred-and-seventy-year-old bottles were found in a shipwreck in the Baltic Sea, some from France's most prestigious houses. The find offered researchers a rare chance to compare old champagne to new. One discovery - it had a lot more sugar to please the era's sweet tooth. In fact, chemical analysis showed the antique bottles of bubbly had up to seven times more sugar than Coke. It's MORNING EDITION. Transcript provided by NPR, Copyright NPR.