Guinness, a popular Irish stout, is traditionally poured in a two-part method, allowing nitrogen bubbles to settle. While the established waiting time is 119.5 seconds, fluid mechanics expert Leonard Schwartz argues it should ideally be extended to 3-5 minutes for maximum flavor and a proper head. This lengthy wait may challenge Guinness enthusiasts who are accustomed to the current serving techniques. Schwartz emphasizes that controlling the formation of the beer's foamy head is crucial to avoid overwhelming flavors while savoring this iconic drink.
'You want a final-half inch creamy head and the best way to get there is by two or more separated pours,' Professor Schwartz told MailOnline.
The appropriate waiting time is possibly 3 to 5 minutes.' Pub-goers will be used to having to wait ages for their beloved Guinness as bar staff religiously perform the 'famed' two-part pour.
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