Spanish system for quality wines produced in a specified region (QWPSR). Each DO has a set of rules defining the region of production, permitted grape varieties and yields, and sometimes alcohol and sugar levels.

For some DOs, a tasting panel must approve wines before they are sold. The system provides a guarantee of authenticity for the consumer while protecting the producer from competition. A higher level DOCa also exists and Rioja was the first DO to be promoted. See also ‘vino de la tierra’, ‘vino de mesa’.

Decanter Staff
Decanter Team

Content written and compiled by the Decanter Team