A pub general manager has defined what the number means on a pint glass - and plainly it was fairly the revelation for many. Watch here:

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Dan Horsman, the basic manager that The Buck Inn in Malham, north Yorkshire, explained the definition of the much-ignored numbers in a video on his tiktok account.

"Pub man Dan" said: "If you"ve ever wondered why your beer doesn"t look rather right, you view those bubbles developing on the next of your glass, it"s since of the number there... That"s the year the glass to be made."

He continued: "You shouldn"t store your glasses for more than 3 years, after that 3 years, you should be getting rid that them and getting brand-new ones."

The clip has been viewed practically 200,000 time at the moment of writing, with countless viewers running to inspect out your glasses.

You checked the number mate? Credit: PA
However, lots of people also disputed several of his claims. He"s not wrong that the number denotes the year the glass was made and CE marked - which suggests that it follows serving directives and health and also safety requirements.

But countless people argued that the balloon on the next of a glass stem indigenous dirt and also can be removed by using glass cleaner.

You"ve no doubt had a pint before and also noticed small bubbles lining the walls of your glass - while her mate"s is all clear. This is a negative thing.

"A head of foam on the peak of a beer is ideal; yet bubbles developing on the sides or bottom of the beer glass and also then climbing to the top may suggest the glass is no "beer clean"," explained beer dispensing equipment supplier Micro Matic ~ above its website.

"Bubbles form at the sides and also bottom that a glass, wherein residue or microscope cracks offer as starting points because that carbon dioxide molecules to gather.

"When the carbon dioxide in ~ a collection site reaches an essential volume, a bubble detaches indigenous the glass and also launches itself toward the beer"s head.

"A clean beer glass need to not have actually bubbles anywhere however in the head on optimal of the beer, or lacing on the side of the beer glass."

Lacing is the residue left by the foamy head top top the inside of the glass as you quaff it down - however if you spot those pesky bubbles on the next of her pint as soon as it"s full, send the back. Or simply knock it back if you don"t mental a little bit of grime.

Now they're immaculate, aren't they? Credit: PA

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

"This pressures bubbles to kind around the etching, highlighting the Brewer"s logo. At some point the balloon grow big enough to rise to the optimal of the glass help to preserve the head of foam.