One of the few permitted vices in Nineteen Eighty-Four is Victory Gin, which oils the outer party and offers suggestions of Englishness and party power: it's always served with clove bitters, implying that Oceania's boots are on the ground in Asia. Chemistry professor Shirley Lin wrote an interesting post about gin's place in Orwell's dystopia.
In the last paragraph of the book, Winston’s tears at the end of the book are also “gin-scented” (page 297). While I was unable to find any studies examining the presence of alcohol in human tears, ethanol in the sweat of continuous drinkers has been detected and quantified.
I always figured that Victory Gin is just watered-down random-grain alcohol and that the "saccharine flavoured with cloves, the speciality of the cafe," is turps. Bottoms up!