The grape variety or varieties must be indicated on the offer.,A renowned brand and/or an esteemed representative of the style in question will be advantageous.,Registration in the recycling system will be advantageous.,Sparkling wine, not sparkling rosé wine.,A certificate enabling Alko's Certified Alternative concept is considered an advantage.,The product must be packaged in a glass bottle with a maximum weight of 835 g. Extra brut or Brut. Not so called "sleeved" bottle.