Cows and Christmas trees will benefit from over 400 thousand unused kegs of beer being destroyed.
Over 35 million pints were recalled due to the COVID-19 lockdown, with many now being used for animal feed and fertiliser.
Brewers will reclaim around 20 million euro in excise as a result.
Revenue, which oversees the brewers' ongoing disposal of vast quantities of out-of-date lager, ale and stout, says most of the reclaimed excise will become an offset against the brewers' future liabilities.
This sets the scene for a two-step loss of excise revenue to the State according to the Irish Independent.
Duties which have already been collected on beer are down at least 15pc this year, and much of what has been collected will become deductions against 2021 production.
The two biggest brewers in Ireland, Diageo and Heineken, have been collecting unused or unfinished kegs from their more than 10,000 pub, restaurant and hotel clients nationwide since April.
Heineken says it has already disposed of the contents of more than 100,000 kegs, Guinness more than 200,000, and dozens of smaller brewers and beer distributors tens of thousands more.
