Franck Pascal’s career is unusual: trained as an engineer (in industrial machinery design), he returned in 1994, (at the age of 23) to the family property after his younger brother’s accidental death. Very quickly he became aware of the harmful effects of chemicals used in agriculture on the human body. In 1998, he removed insecticides, weed killers, fertilisers and anti-botrytis. One day his father gave him a plot of Pinot Noir, systematically ravaged by mildew. He began to work without pesticides, thinking that if organic farming was successful, it would work everywhere. From the very first year, he was successful. As a result, Franck Pascal did not take long to deploy these organic farming methods throughout the vineyard, moving to a fully biodynamic crop in 2002. The vineyard is dominated by Pinot Noir and Pinot Meunier, planted on clay soils with flint and millstone rock, at low yield, distributed over five municipalities of the Marne valley. Isabelle and Franck Pascal define themselves as winemakers and "creators of emotions". They have achieved a high standard in this category of champagnes with character.

The Sagesse Brut Nature cuvée may be the basic champagne in Franck Pascal's range, but it is hardly "entry level", considering the extent to which it represents the brilliant style of this uncompromising winemaker. A cuvée which represents the domain's varied terroirs, which are mainly on slopes with a south-easterly exposure on millstone clay, flint clay and hard limestone clay soils. This champagne is based on the 2007 vintage (with 10% from 2006), featuring a blend of three grape varieties (Pinot Meunier, Pinot Noir and Chardonnay).