Meat, dairy and flower prices are likely to increase in the UK as new import rules from the EU come into play.
An extra £300 million a year is said to be required to deal with the new border changes, which came into effect on Wednesday.
Government figures believe the rise in costs will increase food inflation by 0.2% over the next three years.
Under the new customs rules, imports of chilled and frozen meat and fish, cheese and dairy and five commonly found cut flowers will require an export health certificate.
These certificates would need to be signed off by a European plant inspector or vet before being accepted into the UK.
In April, border forces will start to undertake physical inspections for these types of goods.
Peter Hardwick at the British Meat Processors' Association said: "This is absolutely anathema to the current government but we should sit down with the European Union, negotiate a comprehensive veterinary agreement based on alignment. That would wipe away this problem overnight.”
Former Conservative business secretary Andrea Leadsom said businesses would have to adapt to the new rules.
“There is a huge new opportunity for the UK at the same time as continuing to trade, albeit with some friction, which is the price you pay for leaving the single market and for being a sovereign state again,” she said on Thursday.
Earlier this week, experts warned the new border checks could pave the way for an acceleration in food service industry inflation.
Shaun Allen, boss at hospitality consultant Prestige Purchasing, said: “Should the government’s planned border changes come into force, we may begin to see the rate of inflation rise again.”