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14 Dec 2025

Guinness expert reveals secret to cleaning glasses for perfect pint with 'shtick'

Steve Gilsenan is Global Head of Quality for Guinness and invented their latest Nitrosurge device

Guinness expert reveals secret to cleaning glasses for perfect pint with 'shtick'

Guinness expert reveals secret to cleaning glasses for perfect pint with 'shtick'

Guinness fans have been flocking the Instagram channel of the man who invented the Guinness Nitrosurge device as he shares the secrets of perfect pints at home. 

A pint of Guinness in a pub in Ireland is something special; the two-part pour, the creamy head, laced glass. It's a ritual without rival. Many people chase the same result at home and Guinness' Global Head of Quality is here to help.

Kilkenny man Steve Gilsenan, who invented the Nitrosurge device, recently took to Instagram to share cleaning tips for pint glasses to get that perfect head and all-important lacing, or shtick, on the inside of the glass.

In a recent post featuring two pictures of a pint of Guinness poured in his home, Steve shared his cleaning hack, and it's a simple one.

He posted: "Loving my new glass…. no idea when it was last cleaned when I picked it up. Years I’d imagine. Salt and hot water brought it back sparkling."

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Steve previously advised people to use a brush when cleaning glasses for Guinness but not one used for other washing up. Any oil or other debris on the cleaning brush would prevent the Guinness from producing the famous shtick on the glass.

When probed by a follower on how much salt to use in the cleaning process, Steve revealed, "just a sprinkle on the inside of the glass once it’s wet."

We have to admit, the results are pretty impressive. Steve uses his own Nitrosurge device at home. The Guinness Nitrosurge uses ultrasonic technology to create a two-part pour with a creamy, smooth texture, similar to a traditionally poured Guinness. The Nitrosurge system was developed by a team of Guinness innovators and taste experts. 

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