World's Hottest Peppers by Scoville Units

Data

Note: The Scoville Scale and the Rise of the Superhots

What Is the Scoville Scale?

The Scoville scale measures the heat of chili peppers in Scoville Heat Units (SHU). It was created in 1912 by American pharmacist Wilbur Scoville, who invented an "organoleptic test" in which a pepper extract was diluted in sugar water until a panel of tasters could no longer feel any heat. The more dilution required, the higher the SHU score.

Today, laboratories rarely use human tasters. High-performance liquid chromatography (HPLC) measures the actual capsaicinoid content of a pepper, and the chemical result is converted back into Scoville units. That is why modern record holders have precise numbers like 2,693,000 rather than a round estimate.

For reference: a bell pepper scores 0 SHU, a jalapeño ranges from about 2,500 to 8,000 SHU, a habanero sits between 100,000 and 350,000 SHU, and pure capsaicin, the heat compound itself, scores around 16 million SHU.

The Superhot Era

Before 2000, no pepper had officially exceeded 1 million SHU. That changed in 2007 when the Bhut Jolokia, or Ghost Pepper, was certified by Guinness at 1,001,000 SHU, a milestone that kicked off a furious competition among growers in the United States, Trinidad, and the United Kingdom. The record books since then:

• Infinity: 1,176,182 SHU, brief Guinness record holder in 2011
• Naga Viper: 1,382,000 SHU, Guinness record holder in 2011
• Trinidad Scorpion Butch T: 1,463,700 SHU, Guinness record later in 2011
• Trinidad Moruga Scorpion: 1,200,000 SHU, Guinness record holder in 2012
• Carolina Reaper: 1,569,300 SHU, Guinness record holder from 2013 until 2023
• Pepper X: 2,693,000 SHU, Guinness record holder since 2023

Certified vs Uncertified Contenders

The table also includes several peppers that are not certified by Guinness. Dragon's Breath claims 2,400,000 SHU, the Chocolate 7 Pot sits around 1,800,000 SHU, and the Komodo Dragon pepper, Armageddon, Dorset Naga, and Naga Morich all report million-plus numbers without official certification. Until a grower pays for independent HPLC testing and a Guinness adjudication, those figures stay in the "claimed but unverified" column. Some of these numbers have circulated for years, but certification is what makes a world record official.

Growing and Handling the Superhots

Peppers this hot are bred by a small community of growers who cross-pollinate aggressively in search of the next record, but the results carry practical risks. A single Pepper X pod can blister skin, and chili fumes can irritate the eyes and lungs. Anyone handling superhots is advised to wear gloves, avoid touching the face, and keep dairy products nearby, because the casein in milk helps wash away capsaicin. These peppers are also a scientific marvel: capsaicin exists to deter mammals from eating the fruit while leaving birds, which spread the seeds, completely unharmed.

Fun Facts

• Pepper X, the current Guinness world record holder, was created by Ed Currie of PuckerButt Pepper Company and certified at 2,693,000 SHU in 2023.
• The Carolina Reaper, also created by Ed Currie, held the Guinness record for nearly a decade, from 2013 to 2023.
• The Ghost Pepper (Bhut Jolokia) was the first pepper certified above 1 million SHU, back in 2007.
• Pure capsaicin scores around 16 million SHU, making even Pepper X only about one sixth as potent as the pure compound.
• Birds do not feel capsaicin heat, which is how chili plants get their seeds spread despite being burning hot to mammals.
• Pepper spray used for self-defense is typically formulated at 2 to 5.3 million SHU, hotter than most superhot peppers.
• Capsaicin binds to the TRPV1 receptor on nerve endings, the same receptor that detects physical heat, so your brain genuinely registers the pepper as burning.