Always interested in food and wine, after World War II, Postgate wrote a regular column on the poor state of British gastronomy for the pocket magazine "Lilliput". In these, inspired by the example of a French travel guide called "Le Club des Sans Club", he invited readers to send him reports on eating places throughout the UK, which he would collate and publish. The response was overwhelming, and Postgate's notional "Society for the Prevention of Cruelty to Food", as he had called it, developed into the "Good Food Guide", becoming independent of "Lilliput" and its successor, "The Leader". The Guide's first issue came out in 1951; it accepted no advertisements and still relied on volunteers to visit and report on UK restaurants. As well as democratising ordinary eating out, Postgate sought to demystify the aura surrounding wine, and the flowery language widely used to describe wine flavours. His "A Plain Man's Guide To Wine" undoubtedly did much to make Britain more of a wine-drinking nation. In 1965, Postgate wrote an article in Holiday magazine in which he warned readers against Babycham, which "looks like champagne and is served in champagne glasses is made of pears". The company sued for libel, but Postgate was acquitted, and awarded costs. Postgate's distinctly amateur writings on both food and wine, though highly influential in Britain in their time, did not endear him to professionals in the catering and wine trades, who avoided referring to him; however his activities were much appreciated in France, where in 1951 he had been made the first British "Peer of the Jurade of St Emilion".