A scale developed by Wilbur Scoville in 1912, to measure the heat level in chillies. It was first a subjective taste test, but since, it has been refined by the use of HPLC, the unit is named in honour of its inventor.

The test officially measures the pungency level of a given pepper. There are other methods, but the Scoville Scale remains the most widely used and respected. The greater the number of Scoville units, the hotter the pepper. Of course, being a natural product, the heat can vary from pepper to pepper, so this scale should be considered a guide.

List of Scoville ratings

Rating	Chilli
2000000	Carolina Reaper
2000000	Trinidad moruga scorpion
1400000	Trinidad Scorpion
1382000	Naga Viper pepper
1080000	Spanish Naga Chilli Pepper
1067286	Infinity Chilli
1000000	Bhut Jolokia
923000	The Naga Dorset Pepper
855000	The Naga Jolokia
577000	Red Savina pepper
350000	Scotch bonnet
350000	Habanero
225000	Birds Eye pepper
140000	Pequin pepper
110000	Bahamian pepper
100000	Chiltepin pepper
75000	Red Amazon Pepper
50000	Cayenne
30000	De Arbol pepper
30000	Manzano pepper
25000	Serrano pepper
25000	Rocotillo pepper
23000	Peter pepper
10000	Jalapeño
5000	Guajillo Chilli
2500	Banana Pepper
2500	Anaheim pepper
2000	Ancho pepper
2000	Kashmirir Chilli
1000	Cubanelle Pepper
900	Pimento
700	Santa Fe Grande pepper