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
Palm wine content, mildly intoxicating and sweet. The wine may be allowed to ferment longer, up to a day, to yield a stronger, more sour and acidic taste, which some people prefer. Longer fermentation produces vinegar instead of stronger wine. Palm wine may be distilled to create a stronger drink, which goes by different names depending on the region (e.g., "arrack", "village gin", "charayam", and "country whiskey"). Throughout Nigeria, this is commonly called "ogogoro". In some parts in Cameroon it is known as "Afofo". In parts of southern Ghana distilled palm wine is called "akpeteshi" or "burukutu". In Togo and Benin it