The consumers' charity Which? has analysed Food Standards Agency data and put together a map of the UK according to food hygiene standards.

The data, collected from a 2016/17 survey, ranked Broadland as one of the best areas in the country for food hygiene standards, giving the district a green mark on the map.

Norwich City Council was rated in the middle percentage of the country with an overall food hygiene enforcement rank of 209 out of 389 districts.

King's Lynn and West Norfolk, Breckland, South Norfolk, Waveney, Great Yarmouth and North Norfolk were also rated in the middle percentage of the country.

Birmingham City Council was found to have a poorest record for carrying out inspections within 28 days of a food business opening and as much as 16pc of the city's food businesses were yet to be rated.

Because of the differing standards across the country, Which? described food saftety as 'a postcode lottery'.

Alex Neill, managing director of home products and services, said: 'When it comes to food, British consumers expect the very best standards for themselves and their families.

'But our enforcement regime is under huge strain, just as Brexit threatens to add to the responsibilities of struggling local authorities.

'Effective food enforcement must be a Government priority, including robust checks on imports as well as co-operation with the EU and other countries on food risks.'