Chair of the Ulster Farmers Union (UFU) beef and lamb committee Sam Chesney has blasted UK supermarkets Asda and Sainsbury’s for selling Polish mince in their British stores.“We have been totally let down in a time of crisis. We are told by Prime Minister Boris Johnson that we are all in this together, yet some factories and retailers are going to Poland to get beef. It is very, very disappointing,” Chesney told the Irish Farmers Journal.