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A little history of the Scoville scale

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The Scoville scale was first devised by the chemist Wilbur Lincoln Scoville to measure peppers' spiciness. The Scoville scale is sometimes abbreviated SHU (Scoville Heat Units) which indicate the amount of capsaicin present. So when you see SHU on our site, don't panic!

Initially, the first tests were done by diluting pepper extract with sugar and water. The more the product became diluted, the higher its grade on the Scoville scale. Five tasters carried out the perfect test in order to find the zero point.

Later with technological advancements, they were able to create sophisticated machines such as the HPLC (High-Performance Liquid Chromatography). Now the Scoville scale is no longer based on human perception but is measured with sophisticated and precise machines.

2022 Updated Scoville Scale

Scoville Gradation

Type of Chilli

15,000,000 - 16,000,000

Dihydrocapsaicin, Pure Capsaicin

8,800,000 - 9,100,000


6,000,000 - 8,600,000

Homodihydrocapsaicin, Homocapsaicin

2,500,000 - 5,300,000

Police-grade pepper spray

2,000,000 - 2,200,000

Carolina Reaper (Hybrid)

1,067,286 - 2,000,231

Trinidad Moruga Scorpion, Trinidad Scorpion Butch Taylor, Naga Viper, Infinite chilli, Common pepper spray

855,000 - 1,041,427

Naga Morich, Naga Dorset, Seven Pod

876,000 - 970,000

Bhut Jolokia (also known as Ghost Chilli, Ghost Pepper), Naga Jolokia (Hybrid)

350,000 - 855,000

Habanero Red Savina, Indian Tezpur

100,000 - 350,000

Habanero, Jamaican Hot, Bird's Eye (also known as "Piripiri", "Pilipili", "African Devil")

50,000 - 100,000

Scotch Bonnet, Santaka, Chiltecpin, Rocoto, Thai Pepper (also known as Thai Dragon),

30,000 - 50,000

Ají, Cayenne, Tabasco, Piquin, Hot Lemon Drop

15,000 - 30,000

Chile de Arbol, Calabrian, Manzano

5,000 - 15,000

Peter Pepper, Serrano, Jalapeno

2,500- 5,000

Mirasol, Chipotle, Poblano

1,500 - 2,500

Sandia, Cascabel, NuMex Big Jim, NuMex Suave

1,000 - 1,500

Ancho, Anaheim, Pasilla Bajio, Española

100 - 1,000

Mexican bell, cherry, New Mexican pepper, Bell pepper, paprika

0 -100

Sweet pepper, Pimento (dioecious Pimenta), Sweet paprika

If you are interested in purchasing or growing these chilli pepper varieties, you can view our catalog using the following link: chilli seeds


The science of spiciness

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