Harpreet Bansal founded Wapping Wines in London exactly 20 years ago: he had bought an off license in the historic East End of London, in the cobbled lanes of Wapping. Initially he sold high-volume brands but sip by sip, Bansal – simply known as "H" by customers and friends alike – smartened his offering. As he honed his palate and learned about wine, his selection became wider and more refined.