Portuguese wine maker Quevedo, located in Portugal's Douro Valley, have started to use QR codes on their Quinta Vale D'agodinho port wine labels. The company has just entered the American wine market and, during a revamp of their wine labels to meet the US Alcohol and Tobacco Tax and trade bureau regulations, a QR code was added. Scanning the QR code takes you to Adegga, a social network for wine lovers.
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