Not all the wines are open at one time, of course, but if someone wants something then Gilchrist will always serve it, and make an effort to sell the rest of the bottle to other customers over that evening and the next. If it doesn't sell, he'll drink it himself as a nightcap. But with so many wines to choose from, most customers are perfectly happy to be guided in their drinking, meaning that the logistics are less troublesome than one might imagine. The wines are served in 175ml measures (a proper drink, just). While the top wines are inevitably expensive (the Haut-Brion is £30 a glass and the Grange £20), there are plenty of inexpensive options, too (no fewer than 45 wines between £2.50 and £3 a glass), and not a Blossom Hill Blush Zinfandel in sight. Gilchrist admits that he couldn't do it without the help of his sole supplier, Anthony Byrne Fine Wines, which allows him to take all the wines on a sale-or-return basis. I don't applaud the principle of sole suppliers (since every agent ships some dud wines), but Byrne's list is one of the most diverse in the country, and opening everything on a by-the-glass basis reduces the risk of disappointment to acceptable levels. The menu, changed every Tuesday, consists of 10 starter dishes at £2.75 to £5.75, and 10 main-course dishes at £7.50 to £12, giving plenty of opportunity to duck and weave on the wine front.