Up to 400 farmers took part in a protest over the price of malting barley outside the Guinness brewery this morning.
The farmers who protested outside St James's Gate brewery say Greencore Malt, which supplies the barley to Guinness producers Diageo, is paying farmers 20% less for their crop this year despite increased production costs.
IFA President Padraig Walshe says farmers are at the mercy of large corporations which control the market.
However, Diageo rejected that claim saying that it does not buy directly from farmers and has no role in negotiating the price.