Nick Woods, 39, who runs his own business Fire Foods from his home in Grantham, said he grew the record breaking chilli by accident.
He explained: "I didn't set out to grow it, it's really easy for chillies to crossbreed in a greenhouse, one day I just saw this new chilli plant growing.
"When I tried it tasted nice at first, like an odd fruity taste, the effect is delayed. Then it hit me. All of a sudden I felt it burning in the back of my throat, so hot that I couldn't speak.
"I began to shake uncontrollably, I had to sit down, I felt physically sick. I really wouldn't recommend anybody eat it raw like that."
Former RAF worker Mr Woods started his chilli business five years ago after being given a plant by a friend.
He said: "We do feel quite honoured to get it because everyone in the world has heard of the Guinness Book of World Records.
"Even if someone else comes along and beats it, they can never take it away from us that we once held the world record."
Source: orange