The Gaillacoise Pétillant Naturel is made in the méthode ancestrale: an ancient, artisanal method of making sparkling wine which consists of a single fermentation. Nathalie and Rémi Larroque, who also make the Gaillac Perlé, tend to indigenous grapes in this ancient vineyard area and make just 3,000 bottles of Gaillacoise from the traditional Mauzac grape.