The grape variety must appear on the label/package.,The vintage must be indicated on the label/package.,Registration in the recycling system will be advantageous.,The region of production and the classification of the wine must be indicated on the offer and on the label.,A certificate enabling Alko's Certified Alternative concept is considered an advantage. -DO Bierzo, DO Ribeira Sacra, DO Ribeiro, DO Valdeorras or DO Monterrei. -Grape variety Mencia.