London, UK - 19 March 2017

1. Close of Polish beef steak frying on grill

2. Mid of chef speaking with show visitors

3. Close of steak being turned

4. Mid of chef serving visitors steak

5. Close of cooked steak

6. Wide of Turkish kebab

7. Close of kebab being shaved

8. Close of kebab cooking

9. Close of giant Spanish onion being placed on top of can

10. Various of Palestinian stand with dates

11. Close of bowl of seaweed salad from China

12. Various of man eating seaweed salad

13. Low shot of Callum MacInnes cutting Orkney smoked cheese

14. Close of cheese being cut

15. Close of Scottish flag of St Andrew

16. SOUNDBITE (English) Callum MacInnes, Founder of Island Smokery:

"It (Brexit and a second Scottish vote on independence) is alarming because we've no idea. Basically it's just more turmoil. I mean, you have turmoil in a political situation, when people are uncertain, people don't spend, they always wait to see. So between another referendum and Brexit we're really between a rock and a hard place at the minute because nobody knows how it's going to pan out."

17. Mid of MacInnes taking cheese from fridge

18. Close of smoked cheese being cut

19. Mid of MacInnes cutting cheese

20. SOUNDBITE (English) Callum MacInnes, Founder of Island Smokery:

"It was specialist for a long time, it was maybe too expensive for the man on the street but because of the way the pound and the dollar has gone, it's now accessible to everyone."

21. Close tilt down of Kirkjuvagr gin from Orkney, Scotland

22. Mid of Stephen Kemp of Kirkjuvagr talking with visitors

23. Close tilt up of show visitor sampling gin

24. Close of tap filling glass with gin

25. Various of Stephen Kemp drinking gin

26. SOUNDBITE (English) Stephen Kemp, Director of Orkney Distilling Ltd.:

"I think Brexit doesn't necessarily spell a lot that's good right now, not for us, not out on the periphery of Britain in the north. We very much rely on the British market, we rely also on being able to use Britain as a springboard to go to other markets round the world."

27. Close of jar containing Angelica root - a key ingredient in gin

28. Close of Angelica in hand

29. SOUNDBITE (English) Stephen Kemp, Director of Orkney Distilling Ltd.:

"It's sad to think that small producers like us I think will be penalised because there's been no indication of how the support mechanism might work for the industries and for young companies like us."

30. Mid pan right of sign reading: (Welsh/English) "Cymru/Wales"

31. Various of chef at the Celtic Pie Co. slicing steak and ale pie

32. Wide of Jessica Lea-Wilson from Halen Mon Anglesey Sea Salt co.

33. Close of Lea-Wilson

34. Close of bowl of sea salt

35. Mid of Lea-Wilson pouring salt into her hand

36. Close of salt in her hand

37. SOUNDBITE (English) Jessica Lea-Wilson, Brand Manager, Halen Mon Anglesey Sea Salt co.:

"The protected designation of origin, this little symbol here, protected food names like Champagne or Parma ham or Melton Mowbray pork pies, this legislation is in place to protect our brands, make sure that they're not imitated and we're not quite sure what's going to happen when we leave the EU when it comes to that and that's really important to our business. So we're trying to highlight that and bring it to the government's attention."

38. Extreme close of salt crystals in hand

39. SOUNDBITE (English) Jessica Lea-Wilson, Brand Manager, Halen Mon Anglesey Sea Salt co.:

"We already have a growing market in the US and we're trying to see it as a positive thing that it might grow and that might be an opportunity for us, especially in terms of currency rates at the moment it's quite an attractive option for a lot of US buyers."

40. Various setup shots of event director Soraya Gadelrab speaking to exhibitor

41. SOUNDBITE (English) Soraya Gadelrab, Show Director, the International Food and Drink Event:

"At the moment trading conditions are uncertain for some people and I think a big international trade show like this gives the UK suppliers an opportunity to say; 'Here we are, we're open for business.' But on top of that it shows new markets who perhaps haven't done a lot of imports from the UK previously, that we have such a plethora of on trend products to come and look at, but also it gives those buyers an opportunity to meet the suppliers face-to-face, talk to them and start talking about real genuine business."

42. Various of Robert Ortiz, chef from Lima restaurant in London, demonstrating Peruvian cooking onstage

Things are sizzling in London at IFE, the UK's largest food and drink trade show, with more than 29,000 visitors expected to attend.

The show brings together over 1,350 food producers from around the world - like this beefsteak from Poland.

Or these kebabs from Turkey...

Giant onions from Spain...

Or how about a mouthful of Chinese seaweed salad?

But by far the largest contingent at the event is from the UK, which is acting as the show's partner country for the first time.

This year's show features more than 700 British food and drink producers and gives them a shop window for the international buyers in attendance.

But uncertainty over Brexit is overshadowing the event, with Article 50 expected to be triggered on March 29.

Many exhibitors are small to mid scale food and drink producers who are concerned about how a break from the European Union will impact their growing businesses.

For those north of the border in Scotland, the situation is particularly uncertain, with calls from the Scottish National Party for a second vote on independence.

Callum MacInnes is a cheese maker and founder of Island Smokery on the far northerly Orkney Islands.

He's been producing smoked cheeses and butters for a high-end market for over ten years; his products can be found at hotels including the Burj Khalifa in Dubai.

MacInnes produces 40 tonnes of cheese every year and is currently moving to a larger factory to grow his business, but now he has to contend with more instability.

"It (Brexit and a second Scottish vote on independence) is alarming because we've no idea. Basically it's just more turmoil," he says.

"I mean, you have turmoil in a political situation, when people are uncertain, people don't spend, they always wait to see.

"So between another referendum and Brexit we're really between a rock and a hard place at the minute because nobody knows how it's going to pan out."

But MacInnes tries to remain positive about the political situation in Scotland and sees the benefit of new trade with the US.

With the fall in value of the pound against the dollar he has discovered his high-end cheeses and butters are suddenly much more affordable for Americans looking to invest in high-quality food.

He's just shipped his first export to the US after a positive trade event saw orders flooding in.

"It was specialist for a long time, it was maybe too expensive for the man on the street but because of the way the pound and the dollar has gone, it's now accessible to everyone," he says.

Just down the road in Orkney is one of the newest producers at the show; Kirkjuvagr gin has only been available since last August.

The company started in February, but by the time the first bottle rolled off the production line the Brexit vote had already been decided.

For Stephen Kemp, the director of Orkney Distilling Ltd., it spells trouble for his young company.

"I think Brexit doesn't necessarily spell a lot that's good right now, not for us, not out on the periphery of Britain in the north," he says.

"We very much rely on the British market and also being able to use Britain as a springboard to go to other markets round the world."

Kemp has many advantages basing his gin company in Orkney - for example, the Angelica root (one of the key botanicals used to flavour gin) grows naturally on the Scottish island.

But despite the positive reactions he's getting for his gin, Kemp says there could be difficulties ahead if the impact of Brexit on small businesses like his is not taken into consideration in the negotiations.

"It's sad to think that small producers like us will be penalised because there's been no indication how the support mechanism might work for the industries and for young companies like us," he says.

Welsh producers like the Celtic Pie Co. are also exhibiting at the show.

Like the Scots, many are also finding the prospect of Brexit negotiations a bit too salty.

Jessica Lea-Wilson is with Halen Mon Sea Salt co. from Anglesey, an island off the north coast of Wales.

Halen Mon has been hand harvesting high-end salt products from the waters around the island for the last 21 years.

A 100g packet of Anglesey sea-salt starts from around 4 British pounds (approx. $5 USD) and is called a finishing salt, added at the end of a dish rather than as a cooking ingredient.

The largest market for the Welsh company is in Spain, so a retreat from the EU is of real concern - particularly because it could mean losing its EU protected designation of origin status.

This could mean salt producers in other parts of the world could use the Anglesey name to promote their own salts.

"The protected designation of origin, this little symbol here, protected food names like Champagne or Parma ham or Melton Mowbray pork pies, this legislation is in place to protect our brands, make sure that they're not imitated and we're not quite sure what's going to happen when we leave the EU when it comes to that and that's really important to our business," says Lea-Wilson.

"So we're trying to highlight that and bring it to the government's attention."

Like many British producers at IFE, Lea-Wilson is already looking to new markets and also like many British producers she sees the US as a key growth area.

"We already have a growing market in the US and we're trying to see it as a positive thing that it might grow and that might be an opportunity for us, especially in terms of currency rates at the moment it's quite an attractive option for a lot of US buyers," she says.

Exhibitors are feeling the uncertainty, but remaining positive about the future.

Show director Soraya Gadelrab thinks there's a lot to be confident about in the British food industry.

"At the moment trading conditions are uncertain for some people and I think a big international trade show like this gives the UK suppliers an opportunity to say; 'Here we are, we're open for business.' But on top of that it shows new markets who perhaps haven't done a lot of imports from the UK previously, that we have such a plethora of on trend products to come and look at, but also it gives those buyers an opportunity to meet the suppliers face-to-face, talk to them and start talking to them about real genuine business," she says.

London attracts top chefs from around the world, who come to cook in the capital.

Peruvian chef Robert Ortiz from Lima restaurant in London is demonstrating his skills at the show.

Here he puts together a tiradito dish with raw scallops and spicy Peruvian yellow chillies.

IFE runs from 19-22 March at London's ExCel exhibition centre.