The tech mogul, whose company, Meta, owns Facebook, WhatsApp and Instagram, appeared on the "Cheeky Pint" podcast alongside John Collison and Meta’s Chief of AI, Alexander Wang.

While discussing Meta’s newest AI model in Muse Wonder, Mark remained quiet in the background before taking a sip of his pint of Guinness — and while the black stuff is, admittedly, an acquired taste, Mark wasn’t able to hide his disgust at what appeared to be his first sup of a pint of plain.

While Alexander explained what Muse AI was, Mark sipped his pint and immediately looked around while grimacing — before appearing to swish the pint around his mouth and appearing to be looking to see if anyone would notice if he were to spit it out.

The hilarious clip was shared online, where it gained nearly 7 million views on Twitter (X), as people lampooned Mark’s reaction to the pint.

"What would a real human do right now?" one person joked, while another commented: "The best part is how after the sip he places the pint as far from himself as possible."

As for Meta’s new AI, Mark previously said that the new product would be the "frontier" of the AI race, adding that it is just as powerful as technology from OpenAI, which develops ChatGPT, and Anthropic, which develops Claude.

Mark Zuckerberg pretending to enjoy Guinness is my new favourite thing. pic.twitter.com/y570hFF0V6

— Mark Malone (@soundmigration) October 12, 2026

Despite his apparent disdain for Guinness, Mark is appearing to set up shop in Ireland — having forked out a pretty penny for an extravagant castle in Waterford earlier this year.

* This article was originally published on Extra.ie.