Ed Barker, senior policy adviser of the National Pig Association, said: “The detail we have is not particularly helpful. We have been told we are at the mercy of being undercut by global exporters.
“The real concern is the introduction of exporting countries to the UK for the first time. We don’t know fully what the outcome will be – but potentially losing the European export market is huge.
“Losing the European export market overnight would be a significant challenge, and would have a knock-on impact on producers and the way in which we can provide products like bacon and sausages.”
While not consumed in the same number as other perishables, some exotic fruits such as lemons can be found on UK shelves largely thanks to growers in Europe.
Yasemen Kaner-White, author of Lemon Compendium and lemon expert, said: “Spain is the largest exporter of lemons and citrus in general to the UK, so yes, a no-deal Brexit would undoubtedly result in prices going up.
“Wholesalers might have to start looking at other markets, such as Cyprus, Turkey and Greece, but there is a lot of uncertainty at the moment.
“Lemons can grow quite well in the UK, although not really on a mass scale, but people may find they want to start the process now.
“They are quite sensitive, though, so people will have to take care that it is not too warm, not too cold, and that the temperatures are right. General rule is keep your lemon tree in a pot, sheltered, outside in summer and bring it in in winter.
“I planted in pots some seeds a month ago, shoots have come through already, and I’m expecting to see some lemons on it by end of summer.
“It is luck and weather dependent, however.
“An alternative citrus fruit would be a kumquat, which does grow well in the colder climate.”
A Food and Drink Federation (FDF) spokesman said: “Delays and blockages at the ports would pose a particular threat. On average, we import 40% of our food and drink either directly from or via the EU.
“However, our reliance on importing is significantly higher around the October 31 exit date. We are concerned about the impact on imports where Government isn’t able to secure continuity deals for existing EU preferential trade agreements.
“A no-deal scenario would see the current flows of goods into the UK be significantly reduced for a period of months at a minimum. Limited shelf life products are where impacts will be likely felt, such as fruit and vegetables, salads, certain meats and essential ingredients like processed egg.
“There is no predictability around the types of goods that will get stuck in transit on their way into the UK, and therefore the impacts for consumers and manufacturers due to delays.
“FDF supports the closest possible trade and regulatory alignment between the UK and EU and an immigration policy which ensures access to the workers we need.”