Ledger has an eye on the Good Beer Guide

It is currently serving up 50 beers from locations such as The Yukon, Finland and New Zealand as part of its international beer festival this month. But manager John Wall confirmed the bar was aiming to develop a year-round reputation for fine ales among London's drinkers.

He said: "I've made no secret of the fact that the top item on my agenda is to get into the Good Beer Guide, and you can only do that with consistency and a top-end cellar.

"Our cellars are kitted out on stillage racks now, whereas before we were using more modern cask widgets.

"There's nothing wrong with what we were doing, but I prefer the traditional way, and I feel you get a brighter beer from it.

"We're also looking to focus on small brewers around the country and bring their beer into London."

Wetherspoons operates 723 pubs around the UK, of which 173 are in the guide. However, very few pubs from the E14 postcode make it onto the list. The North Pole in Manilla Street is the only watering hole listed from the area, after The Grapes in Narrow Street was mistakenly omitted due to an administrative error by Camra volunteers.

The Limehouse haunt - which was crowned pub of the year by The Publican magazine in 2007 - is likely to be included once again in the next edition.

Seasoned drinkers in the Wharf have been sampling The Ledger Building's range of festival ales since last Wednesday.

The pub aims to sell at least 4,600 beers during the 20-day event, but hopes to reach as high as 6,000.

It will be celebrating St George's Day today (Thursday) with an Oompah band from 6.30pm.

Oompah Brass has appeared on BBC Radio One and at numerous venues around Europe, showcasing their Oompop versions of classic pop songs.

Mr Wall said: "It would have been easy to get a jazz band in, but wanted to give it that Oktoberfest feel."

Visitors will be able to sample the unusual sounds over a pint of exotic £2.19 ale from Britain or beyond. Popular tipples so far include the New Zealand Epic Pale Ale and the 6.2 per cent Sinebrychoff Porter. The festival runs until May 4.

Go here for more details.