Dragon's Breath
Dragon's Breath is a British-bred superhot best known for a heat figure that was never independently verified. It came out of a collaboration between grower Neal Price, NPK Technology and Nottingham Trent University, trialling a plant feed and exploring capsaicin oil as a skin anaesthetic. The plant itself was raised in Wales by Mike Smith of St Asaph, Denbighshire — hence the name, after the Welsh dragon — who was aiming for an attractive plant to enter at the 2017 Chelsea Flower Show rather than a heat record. Its widely quoted 2.48 million SHU comes from unofficial testing and was never submitted to Guinness World Records.
History & lineage
Dragon's Breath occupies an unusual position in the modern superhot world: a chilli developed primarily for medical research rather than culinary use. The variety was bred in Wales by Mike Smith of Denbighshire, in collaboration with Nottingham Trent University and the company NPK Technology, with the explicit aim of producing capsaicin oil for medical applications - particularly as a skin anaesthetic for patients allergic to standard local anaesthetics.
In 2017, unofficial testing recorded Dragon's Breath at approximately 2.48 million SHU - briefly making it a candidate for the world's hottest chilli title. However, the variety was never submitted for Guinness World Record verification, with breeder Smith stating that the chilli was not intended for eating and had no commercial culinary use. The Carolina Reaper retained its official Guinness title at the time, eventually losing it to Pepper X in 2023.
The medical research angle reflects an emerging direction in chilli science: very high SHU peppers as raw material for capsaicin extraction rather than as eating peppers. Pure capsaicin is genuinely useful in topical pain management, with concentrated capsaicin patches and creams in clinical use for nerve pain, post-shingles pain, and similar conditions. Dragon's Breath was bred to maximise capsaicin yield per pod for these applications.
The variety's name connects to Welsh national identity - the red dragon of the Welsh flag is one of the country's most recognisable symbols, and the chilli's name was chosen partly to reflect its Welsh origins. Dragon's Breath is one of relatively few chillies bred entirely in the UK to achieve significant international recognition, alongside the Naga Viper, Sugar Rush family, and a handful of other British-bred cultivars from the modern era.
Culinary uses
Due to its extreme heat levels that can cause anaphylactic shock, Dragon's Breath is not recommended for culinary use. It was developed primarily for medical research purposes as a potential anesthetic derived from its capsaicin oil, and as an ornamental plant.
Growing it in the UK
Chinense is the slow one. Seed can take three weeks to germinate and wants steady warmth to do it, so sow in January or February with a heated propagator and expect to ripen the fruit under cover. Germination is given as 7-21 days. 90 days to maturity is an ordinary season here — sow in February and it will ripen without a fight.
At 60–90 cm this is a substantial plant. Give it a 10-litre pot or a greenhouse border, and stake it before the fruit sets rather than after. The compact habit makes it a good container plant and an easy one to keep on a windowsill. Yield is moderate, so a single plant is a taste and two or three are a supply.
This is superhot territory, and the handling advice is not decorative: wear gloves when cutting it, keep your hands away from your eyes for the rest of the day, and open a window before frying it — capsaicin in hot oil will clear a kitchen. Thin walls dry quickly, which makes a glut easy to deal with.
Read from this variety's own record — the figures are in the panel opposite.
