Measuring an average 1.5 million Scoville units, the Carolina Reaper has been named the hottest chilli pepper in the world by the Guinness Book Of Records.
Tesco chilli pepper buyer Phoebe Burgess said: "Despite it being astonishingly hot it also has a wonderful fruity taste. Only a sliver is needed to add exciting flavour to your favourite curry."
She added: "Last year the Komodo Dragon became our most popular chilli pepper ever and since then we've been inundated with requests from customers to see if we could go one better and thanks to the fantastic growing skills of our chilli producer we've done that."
The variety is supplied by the UK's largest chilli pepper grower, Salvatore Genovese, whose three-hectare farm is based in Blunham, Bedfordshire.
Genovese started growing chilli peppers 15 years ago after he took over his parents' cucumber business. He now supplies about a million a week, weighing around 15 tonnes.
"On the back of the acclaim I've received from supplying Tesco I now get requests from all over the world," he said.
The Carolina Reaper will be on sale in more than 130 Tesco stores across the UK and will cost £1 for a packet containing two to three chilli peppers.