Wine firm hopes waves will make its bubbly sparkle One
Wine firm hopes waves will make its bubbly sparkle
One of France’s oldest champagne producers is testing a new way of ageing its bubbly: on the seabed off northern France.

Wine firm hopes waves will make its bubbly sparkle
One of France’s oldest champagne producers is testing a new way of ageing its bubbly: on the seabed off northern France.