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
Madeira wine up large (112 gal/423 l) casks of wine known as "pipes" for their voyages to India. The intense heat in the holds of the ships had a transforming effect on the wine, as discovered by Madeira producers when one shipment was returned to the island after a long trip. The customer was found to prefer the taste of this style of wine, and Madeira labeled as "vinho da roda" (wines that have made a round trip) became very popular. Madeira producers found that aging the wine on long sea voyages was very costly, so began to develop methods on the