On a September day so hot that I tasted barefoot and was grateful for the Caledonian Club's tartan carpet, UK fine-wine merchant O W Loeb showed off its latest wares. This ultra-traditional merchant, originally built on the top-quality German wine imported by emigré Otto Loeb and sold in particular to the fledgling Glyndebourne Opera house in deepest Sussex, surprised us all recently by blazing a particularly trendy trail: wine on tap, an ecologically sound system of delivering ultra-fresh, top-quality wine to restaurants via pressurised kegs and the taps shown here.
They use 90% less carbon than glass, take up much...