Larry French / Getty Images for Capitol File Magazine Sir Peter Westmacott, Britain's former ambassador to the United States, has warned that Britain would be forced to open up its markets to cheap American meat as the "price" of any new bilateral trade deal with Washington. The ambassador also warned that the US would demand that Britain opened up its markets to cheap imports of American meat, which would place British farmers under "severe threat." Currently, strict EU legislation bans the import of cheaply produced American products such as hormone-treated meat, genetically modified vegetables. Britain will decide whether those bans stay in place after Brexit, but Washington appears determined that any trade deal will hinge on the UK scrapping them. LONDON — A post-Brexit trade deal with the US trade risks putting the future of British farms under "severe threat," the UK's former ambassador to the US has warned. Sir Peter Westmacott, who served in Washington during the Obama era between 2012 and 2016, told Business Insider that Trump's administration would force Britain to open up its markets to cheap American meat as the "price" of any new bilateral trade deal with Washington.See the rest of the story at Business InsiderNOW WATCH: Why Russia may not be as strong as most people thinkSee Also:The man behind the official Leave campaign says Brexit is now a 'train wreck'Theresa May to ask the EU for an extra two years of Brexit transitionInside the Brexit battle to keep Britain in the single marketSEE ALSO: Inside the Brexit battle to keep Britain in the single market