Cava is a sparkling wine that comes under the D.O Cava, a classification that rather protects a certain region, protects a method of production and standards of quality. It’s for this reason that we find Cavas that have been produced from all over Spain, with cava from Catalonia, cava from Extremadura, or even cava from La Rioja. Cava is a wine that undergoes a second fermentation in the bottle, maintaining a level of CO2 which gives it its bubbly character. Once the bottle has undergone a second fermentation, the cava is aged in the bottle, where depending on the time it can be classified as a Reserva or Gran Reserva. Cavas are also classified depending on the level of residual sugar present after the second fermentation, and can be classified in increasing levels of sugar as Brut Nature, Extra Brut, Brut, Extra Seco, Seco, Semi Seco and Dulce.