E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
The best wine in the nation. Holinshed says it was so called because religious men would be sure neither to drinke nor be served of the worst, or such as was anie waies vined by the vintner; naie, the merchant would have thought that his soule would have gone streightwaie to the devil if he would have served them with other than the best. (i. 282.)