Sparkling wine made in the traditional champagne (indicating the year of harvest) and stamped with the VEQPRD (Vinho Espumante de Qualidade Produzido em Região Determinada) certification. VFQPRD is a regional sparkling wine made in the traditional champagne, charmat or transfer method in one of the following determined regions: Douro, Ribatejo, Minho, Alentejo or Estremadura. VQPRD is a sparkling wine that can be made by injecting the wine with gas in the traditional champagne, charmat, transfer method anywhere in Portugal. Espumoso is the cheapest and lowest level of sparkling wine, made by injecting the wine with CO2. Top-quality Espumantes can be found in
Mexican wine U.S. and Canada, and most wineries offer tours and wine tasting. Most of Mexico’s wine innovation occurs in the Ensenada area, in the form of the so-called “"boutique"” producers such as Casa de Piedra, whose first vintage was produced in 1997. This operation only produces one white, called Piedra del Sol and a red called Vino de Piedra. Another small producer is Viña de Liceaga, which produces reds. Don Miller owns a ranch and winery called Casa Adobe Guadalupe with a wine school here to help small producers make a profit and draw tourists. There is even one organic wine