The price of a pint is set to rise from mid-August.
Guinness owner Diageo has said it will increase costs by 4c per pint, which is likely to rise to 5c when VAT is included.
The company, which also brews drinks like Hop House 13 and Carlsberg, already introduced a 12c increase in February this year.
The Vintners Federation of Ireland has said the move is "poorly timed and deeply unfair to both consumers and publicans."
'Guinness Guru' Daragh Curran told Moncrieff the days of a pint for under €5 in the capital are gone.
"I have been in plenty of places this year around the country that have been under a fiver," he said.
"Even towns like Westport, Carrick-on-Shannon, places in Donegal you'd still get a pint for under a fiver.
"Dublin - absolutely no chance".
Mr Curran said he recently bought a pint in Dublin's Temple Bar for €8.95, but the new increase will push the price to €9.
"Just to put it in perspective: I went there in October 2021 [and] it was €6.90," he said.
"Less than two years later that's a €2.05 increase, so I think that's the big reason why people are upset".
Mr Curran said he is surprised at the creeping increase.
"It does seem a bit random that they're [increasing] it 4c, instead of just doing it 16c in one go or 21c in one go," he said
"That's what they've usually done, and I think that's what the big thing was - it seemed like every two or three months.
"It's nothing to do with the pubs, it's obviously Diageo - so it's the cliché, but where's it going to stop?" he added.
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