The cost of a pint has passed £10 in London as the price of beer continues to soar. A number of high-end bars are now charging £10 or more for draught or bottled beer. Stanley’s rooftop bar in Mayfair is one of many establishments that has hiked the cost of its beer. A pint of Moretti or Heineken is sold at £11, while a half pint is going for £8. Guinness is sold at £10 a pint, according to the menu for the bar, attached to the Chesterfield hotel. The cost of bottled beer is even steeper; the Connaught Grill in Mayfair is charging £12.50 for a 330ml bottle of Noam lager or Curious IPA. It comes months after Guinness makers Diageo revealed draught prices would surge by 5.2 per cent in April as operational costs continue to rise for the business. Pub owners told the Morning Advertiser that Diageo seemed “hell-bent on having the first £10 a pint beer .” London is one of the most expensive places in the country to buy a pint, with the Morning Advertiser putting the average price at £6.50, below Oxford at £6.75.…