The British government has insisted it is engaged in "good planning" and taking "sensible precautions" in case there is a no-deal Brexit.
Asked if Prime Minister Theresa May would continue to lead the country if her negotiations fail and the UK is plunged into a no-deal scenario, a spokesman said she is "fully committed to delivering on the will of the British people".
Ministers have confirmed efforts to stockpile medicines and ensure an "adequate" food supply if there is a no-deal Brexit.
However Brexiteers have criticised the approach, insisting that while preparations must be made to show Brussels that the UK could cope without a deal the plans should not mark a return to the referendum campaign's so-called "Project Fear".
Dozens of technical notices setting out what businesses and concerned citizens need to do are expected to be published in August and September.
Mrs May's spokesman said: "We have been absolutely clear that it's in the interests not just of ourselves but the EU to get a deal.
"In the event of no-deal there will of course be consequences for the European Union."
The spokesman added that the plans are aimed at ensuring an "orderly" Brexit even if there is no agreement with Brussels.
"We are working towards getting a deal but the Prime Minister is clear that we will put in place all the necessary steps to ensure the UK has a bright future."
Asked whether the food industry was aware it was supposed to be leading work on ensuring an adequate supply post-Brexit, the spokesman said: "There have been discussions with all sectors of business since the Brexit process began."
The spokesman played down reports that the military had been put on stand-by to deal with a no-deal scenario, saying there are "no plans to involve the Army in this".
Mrs May is on holiday in the Italian Lakes, leaving her de facto deputy David Lidington as the senior Government figure in the UK.
Downing Street defended ministers taking holidays despite the tense state of the Brexit talks, saying: "The Prime Minister and other ministers are always fully engaged with their briefs.
Foreign secretary defends marital mix-up
Meanwhile, Foreign Secretary Jeremy Hunt has admitted to a "terrible mistake" after describing his Chinese wife as Japanese during a diplomatic mission to Beijing.
Mr Hunt was hoping to use the visit to boost trade links and address sensitive issues including the human rights situation in Hong Kong.
He may have hoped that his personal connection to China through his wife Lucia could help forge strong links with the Beijing government, but that was undermined when he got her nationality wrong.
'My wife is Japanese. My wife is Chinese, sorry. Terrible mistake to make' - Jeremy Hunt pic.twitter.com/OpyVjPepwu
— RTÉ News (@rtenews) July 30, 2018
At a meeting with Chinese counterparts, Mr Hunt said: "My wife is Japanese ... my wife is Chinese.
"Sorry, that's a terrible mistake to make."
Mr Hunt was using visit to show Britain's commitment to deepening ties post-Brexit between the nations.
Trade, North Korea, nuclear weapons and climate change were among the topics up for discussion.
