[3] By 1867 annual sales of Jacquesson bottles had reached 1,000,000, but a period of decline followed the death of Adolphe Jacquesson, inventor of the muselet,[4] when the descendants ceased to continue the family business, and ownership changed hands over several decades, until in 1974 when it was bought by Jean Chiquet.
Methods have changed to be organic, fermentation in oak is increased, new vineyards are bought in, but production still is limited to around 350,000 bottles per year.
All wines are characterized by elegance and minerality, due to an extremely low dosage (usually 2–5 grams per litre or 2.0–5.0 ounces per cubic foot).
On backlabel are indicated number of bottles produced, month of disgorging and dosage.
In July 2010, 168 bottles of Champagne were found on the Föglö wreck near Åland in the Baltic Sea by Finnish diver Christian Ekström.