Ansley at the door to a Maison Surrenne cellar. The black stuff is a local mold, Baudoinia Compniacensis, that grows on the evaporating fumes from barrels of cognac. Below our cellar at the ranch had it after a few years, probably from the old cognac barrels we were using.
Old artisan cognacs: comments on Maison Surrenne 1946 Grande Champagne
Old artisan cognacs: comments on Maison Surrenne 1975 single David Picoron vineyard grande champagne
Old artisan cognacs: comments on Maison Surrenne Tonneau 1 very old petite champagne
Artisan cognac: comments on the standard bottlings from Maison Surrenne
Old artisan cognacs: comments on Maison Surrenne Héritage no. 2