Debate over perfect Guinness bubbles up again as barman says ‘little craft’ required

Irish barman says two-part pour was done to speed up service, but scientists say it may improve pint

Guinness has long maintained that good things come to those who wait" - with its elaborate two-part pour being essential for achieving the perfect head and flavour profile, not to mention the dome synonymous with a proper pint of the black stuff.

But an Irish barman has worked Guinness aficionados into a lather by insisting there is no such thing as the perfect pour, and that there is little craft in pulling the beer lever".