Diageo told BBC News NI that there was no risk of a Guinness shortage in Northern Ireland or the Republic.
“As we move into the busy Christmas period, we will make all deliveries to our customers across the island of Ireland, as planned and without disruption,” a spokesperson said.
Guinness accounted for about one in every three pints sold in the Republic of Ireland in 2022 – the most recent year figures are available for.
The brand’s biggest market worldwide is Great Britain, while global sales of the black stuff are about 1.8 billion pints a year.