All the weird food Hamish and Andy have eaten on their travels

No trip overseas is complete without tasting the local cuisine. So among the laughs, activities and sightseeing Hamish Blake and Andy Lee have done on their Gap Years and their current series Hamish and Andy's "Perfect" Holiday, they've made sure to get in some cultural eating. And the result has been equal parts hilarious and disgusting.

Hamish & Andy's Perfect Holiday (2019): World's hottest chilli

When the besties arrived in Las Vegas, Andy asked Hamish what the city is most famous for besides drinking and gambling. Hamish immediately suggested the one thing we all secretly want to do: "Am I singing with Britney [Spears]?" Unfortunately for Hamish this task had nothing to do with performing and almost everything to do with boxing, except actually boxing.

Hamish had to eat the world's hottest chilli over three rounds in the ring. The heat quickly hit Hamish, who was excessively salivating and dancing around the ring to try and ease the pain. Watch the clip above to see the hilarious moment unfold.

Hamish after his first bite of the world's hottest chilli. (Nine)

Hamish & Andy's Gap Year Asia (2013): Stinky tofu

Andy's search for "one of the worst foods in all of Asia" led him to a restaurant in Taiwan that served stinky tofu. The smell of the cuisine is so strong that not even his local guide had tried it, and Andy wasn't about to either. That opportunity went to Hamish, who instantly recoiled at the smell. Hamish was practically in tears and gagging with just one bite, which is not surprising given Andy could smell the dish through a peg and the cameraman was struggling to cope with just the smell. "I never want to breathe in again," Hamish said.

Hamish tears up over the smell of the tofu. (Hamish & Andy)

Hamish and Andy's Gap Year Europe (2012): Fermented herring

It's only fair that Hamish tried the 10-year-old tofu given that he made Andy eat rotten fish in Sweden the year before. The fermented herring, known as surstromming, is sold in cans and continues to rot no matter how long it sits in the tin. It smelt so bad Hamish had to set up the dish outside in a park away from other people. Andy buckled over just from the smell of the can being opened. He then threw up the first bite and had to go back for a second attempt for the challenge to be completed. Andy managed to keep it down long enough to meet the requirements of the task but it soon came right back up.

Andy struggles to keep the fish down after his second bite. (Hamish & Andy)

Hamish and Andy's Gap Year Europe (2012): Germany's hottest sausage

Andy soon got revenge on Hamish for the rotten fish with Germany's hottest sausage. This food is so hot it isn't even listed on the Curry Hut's menu, and the cook has to use rubber gloves to prevent burning their hands. It's so hot that only 10 out of 1,000 people who have tried it have been able to eat it. And the owner was even worried that Andy would "get angry if it's too hot for you because he had to call an ambulance a couple of times". In front of a large crowd Hamish swallowed a bite and immediately experienced waves of painful heat, grabbing his head and reaching for Andy for support.

Hamish struggles to cope with the heat of the sausage. (Hamish & Andy)

Hamish and Andy's Gap Year South America (2014): Teredo worms and roast face

When they weren't cooking a lasagne on a volcano during their South American gap year, Hamish and Andy were challenging each other to the local cuisine. Hamish was tasked with eating teredo worms while Andy had to try a goat's eye from a Bolivian delicacy known as roast face.

Andy was less than impressed about eating a goat's eye. (Hamish & Andy)

But that won't be the last of Hamish and Andy's eating challenges with more unique cuisine set to be consumed in the next episode of Hamish & Andy's Perfect Holiday. And after Hamish ate the chilli in episode 1 it's looks like Andy is up next.

Hamish & Andy's Perfect Holiday airs Sundays at 7pm on Nine. Catch up on the latest episodes on 9Now.