Jones said: “People should carry on filling up and using their cars as normal, shipments of jet fuel are continuing to arrive in the UK and the UK’s critical supply of CO2 has been shored up.”
The majority of the UK’s CO2 is imported from Europe but it is often produced as a by-product when companies make fertiliser, which needs natural gas.
Supermarkets have said they are working with the government to help plan for a worst-case scenario.
And, last month, the National Farmers’ Union said cucumber and tomato prices could rise over the next six weeks, with the cost of other crops and milk increasing in the next three to six months.
UK airlines have insisted they are “not currently seeing a shortage of jet fuel” as they buy it in advance and airports maintain stocks.
The Liberal Democrats have urged the government to include a bill in the next King’s Speech which puts food security at the top of the government’s agenda.
The party’s Cabinet Office spokeswoman Lisa Smart said “the government also needs to wake up and provide more support to people who simply cannot afford the sky-high cost of getting around”.
She added that the Lib Dems have proposed a 10p cut on fuel duty as well as reducing public transport costs.
Iran’s top negotiator said earlier this week that reopening the Strait of Hormuz is “impossible” if the US continue their naval blockade of Iranian ports.
US President Donald Trump hopes to put pressure on Iran by targeting two economic drivers – the tolls the country was demanding ships pay to pass through the Strait of Hormuz, and Iran’s oil revenue.
Iran has responded by calling the blockade “piracy”. Negotiators from the country were in Islamabad, Pakistan, on Saturday for talks on ending the conflict.