The deal gave UK farmers a US quota for beef of 13,000 metric tonnes, which the National Farmers Union said was a positive. Under the deal, US farmers will have the same quota for sales into Britain. Crucially there will be no weakening of UK food standards on US beef imports, which was a red line for the union and an election manifesto pledge for the Labour government. However, with little price differential between British produced beef and US beef that does meet UK standards, the US product could struggle to find a UK market. Currently 100% of the fresh beef sold by Britain's two biggest supermarket groups - Tesco and Sainsbury's - is British and Irish.