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Pub manager explains what the number on pint glasses in UK actually means

Home> Lifestyle> Food & Drink

Updated 14:28 31 Dec 2023 GMTPublished 14:29 31 Dec 2023 GMT

Pub manager explains what the number on pint glasses in UK actually means

You may have seen the numbers but never given much thought to what they mean

Claire Reid

Claire Reid

The manager of a pub has cleared up what the numbers printed on the side of a pint glass actually mean. I think we’ll all sleep better tonight knowing that, eh?

Think back to the last time you were sat in a pub drinking a pint - probably don’t have to think too far back for most of us, given the time of year - do you remember seeing a little white number and some letters on the side? Here’s what it all means:

Obviously the word ‘pint’ denotes the fact that it is a pint glass - but you may have also spotted a letter and a number as well as the CE kitemark.

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And for those curious as to what it means, Dan Horsman, the general manager of The Buck Inn in Malham, North Yorkshire, explained the meaning of the largely-ignored numbers in a video on his TikTok account back in 2021.

'Pub Man Dan' explained: "If you've ever wondered why your beer doesn't look quite right, you see those bubbles forming on the side of your glass, it's because of that number there... That's the year the glass was made."

He continued: "You shouldn't keep your glasses for more than three years, after that three years, you should be getting rid of them and getting new ones."

The clip has been viewed almost 200,000 times at the time of writing, with many viewers running to check out their glasses.

However, lots of people also disputed some of his claims.

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TikTok/@pubmandan

He's not wrong that the number denotes the year the glass was made and CE marked - which indicates that it complies with serving directives and health and safety requirements.

But many people argued that the bubbles on the side of a glass stem from dirt and can be removed by using glass cleaner.

You've no doubt had a pint before and noticed tiny bubbles lining the walls of your glass - while your mate's is all clear. This is a bad thing.

"A head of foam on the top of a beer is ideal; however bubbles forming on the sides or bottom of the beer glass and then rising to the top may indicate the glass is not 'beer clean'," explained beer dispensing equipment supplier Micro Matic on its website.

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"Bubbles form at the sides and bottom of a glass, where residue or microscopic cracks serve as starting points for carbon dioxide molecules to gather.

"When the carbon dioxide at a collection site reaches critical volume, a bubble detaches from the glass and launches itself toward the beer's head.

Ever questioned bubbles down the side of your glass?
Pexels/Andrew Patrick

"A clean beer glass should not have bubbles anywhere but in the head on top of the beer, or lacing on the side of the beer glass."

Lacing is the residue left by the foamy head on the inside of the glass as you quaff it down - but if you spot those pesky bubbles on the side of your pint when it's full, send it back. Or just knock it back if you don't mind a bit of grime.

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Don't worry if it's all suspiciously gathered around a logo though - that's probably not dirt.

Micro Matic continued: "An exception to this is laser etched glassware. Brewers are now marketing glasses where a logo or insignia is laser engraved into the bottom of the glass.

"This forces bubbles to form around the etching, highlighting the Brewer's logo. Eventually the bubbles grow large enough to rise to the top of the glass helping to maintain the head of foam.

"This is done to enhance the beer drinking experience and to differentiate the beer brand."

Featured Image Credit: TikTok/@pubmandan/Getty stock photo

Topics: Food And Drink

Claire Reid
Claire Reid

Claire is a journalist at LADbible who, after dossing around for a few years, went to Liverpool John Moores University. She graduated with a degree in Journalism and a whole load of debt. When not writing words in exchange for money she is usually at home watching serial killer documentaries surrounded by cats. You can contact Claire at [email protected]

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