They're now being used for animal feed and fertiliser.
Around 35 million pints of beer were lost due to the COVID-19 lockdown.
According to the Irish Independent, most of it is being converted into animal feed or fertiliser for Christmas trees.
400,000 kegs worth of beer were recalled after pubs shut during lockdown - half of which were from Guinness brewer Diageo.
Brewers are working with Revenue to reclaim more than €20 million that was paid in excise.