For more than 200 years, fish extract was used to refine vats of Guinness SIMON DAWSON/GETTY IMAGES

Good things come to vegans who wait - Guinness is now officially made without using fish guts in the filtration process.

Diageo, the company which manufactures the stout, yesterday confirmed that all kegs of Guinness on the market are vegan-friendly as they have been made using a new process which does not use isinglass, a product made from fish bladders that helps to remove extra yeast from the stout.

To mark the occasion, Paul Vogel, a founder of the Vegan Society of Ireland, had his first pint of plain in 17 years. Mr Vogel’s last Guinness was at the Pavilion Bar in Trinity College Dublin when he was a mature student studying for a masters in the history of architecture. He gave it up so…