Earlier, divers found about 168 bottles of champagne from a shipwreck, which was present at the bottom of Baltic Sea. After that, scientists started experiments to figure out what was exactly in the bottles. In addition, they worked to determine how old the bottles of champagne were and how that champagne is different from the bubbly sold these days.

On April 20, Sci-Tech Today reported that scientists discovered that the bottles of champagne were about 170 years old. They also found that the 19th century champagne was like the champagne of today.

While providing information about the old champagne bottles, Philippe Jeandet, a professor at the University of Reims Champagne-Ardenne in France, said, "We were thinking the chemical composition of this wine would be very different from the composition of wines today. But that was wrong. We have found that the wines were very similar".

Results of the tests performed by Jeandet and colleagues have been published on April 20 in the journal Proceedings of the National Academy of Science. According to them, during the tests, they compared chemistry to samples from the shipwrecked champagne with samples of modern Veuve Clicquot. The shipwrecked champagne was believed to produce in 1840, while the samples of modern champagne were from 1955, 1980 and 2011.

As per Sci-Tech Today, the scientists do not know about the sunken ship. They found the champagne came from Veuve Cliquot Ponsardin, Heidsieck and Juglar houses. The chemical difference between the champagnes pointed changes in the winemaking process over the last many decades. According to the scientists, the old champagne had much higher sugar content compared to today's champagne. The scientists found that the old champagne had sugar about 150 grams per liter, while the new champagne had 6-8 grams per liter.