This wine is a blend of 80% Chardonnay, 10% Grenache and 10% Mourvèdre. Fusión was created using the Méthode Champenoise, which is the traditional method of making Champagne and other sparkling wines. Each of these lots was picked and pressed separately. The juice of each varietal was inoculated using Prisse de Mousse yeast, which is a traditional Champagne yeast and left to ferment for approximately 4 weeks at about 57 degrees Fahrenheit. After fermentation and settling, the three varietals were blended together and then bottled with a small amount of yeast and sugar to induce secondary fermentation. This process took about 18 months. The bottles were riddled over the course of two weeks to bring all the sediment into the neck of the bottle. The sediment was frozen in a glycol bath and then disgorged and topped up with a very modest dosage of 2 g/L.