Miguel and Valentino Cava wine vinegar is made using the must of the Spanish Cava grapes. This traditional method, referred to as "Cava" is an aging system similar to that of "Methode Champenoise".
The process included fermenting the vinegar in chestnut barrels for approximately 3 years. As the bottle is turned upside-down and rotated, the "Mother" of the Cava, in small filaments, slides to the neck of the bottle. The "Mother" is expelled from the bottle at very high pressure