Sales of the Douro Valley's new wave of table wines have increased by 43% in the last year, Jonathan Ray comments. Established port houses such as Quinta de la Rosa, Quinta do Noval, Symington Family Estates and Real Companhia Velha are a good place to start, he says. Douro wines represent "exceptional value" and "burst with character, intensity and freshness". Ray concludes that with many supermarkets stocking Douro table wines for under a fiver, it is not without reason the area is called "the Valley of Gold".