Scotch Bonnet vs Habanero

Both are Capsicum chinense, and the confusion between them is old and reasonable. The species is Amazonian in origin. Moses and Umaharan at the University of the West Indies ran DNA markers on 201 accessions in 2012 and found three genetic clusters: one spanning the Upper Amazon, the Guianas and the Lesser Antilles, one from the Lower Amazon, and a small, distinct one made up only of Greater Antilles material, the islands that include Jamaica. The Scotch Bonnet belongs to that Jamaican group. The Habanero is the pepper of the Yucatán, and the same paper's migration model has C. chinense reaching the Greater Antilles from Central America by way of the Yucatán. Close cousins, separated first by water and then by a few hundred years of separate selection.

The Habanero has paperwork. Mexico published a denominación de origen for Chile Habanero de la Península de Yucatán in June 2010, covering Yucatán, Campeche and Quintana Roo, the way a wine region is protected. The Scotch Bonnet has trade instead. Moses and Umaharan note that West Indian cultivars such as Scotch Bonnet and West Indies Red sell at a premium in European and North American markets on pungency and flavor. Delaware State University's extension sheet describes the Scotch Bonnet as a perennial with a glossy, Chinese-lantern fruit ripening red, orange or yellow, a smoky, fruity flavor, and a place as an export crop for small farmers working plots of a thousand plants.

The shapes differ more than the heat does. The Scotch Bonnet is squat and pleated with a flattened bottom, which is where the tam-o'-shanter name comes from. The Habanero is a lantern that narrows to a point. Flavor follows the shape. Tasters describe the Habanero as floral and apricot-like, the Scotch Bonnet as sweeter, with apple and tomato under the heat. In Jamaican cooking the Scotch Bonnet substitutes for nothing. It is the pepper in jerk seasoning and in escovitch. In Yucatecan cooking the Habanero holds the same seat at the table.

Published testing treats them as one heat class. In a 2005 replicated trial at Las Cruces, Paul Bosland's group measured a standard orange Habanero at 357,729 SHU by HPLC and called that normal for the cultivar at that site. The database gives both peppers the same range. If a dish calls for one and the market has the other, the cook loses a little aroma and nothing in heat.

Sources

• Moses and Umaharan 2012, J. Amer. Soc. Hort. Sci. 137(4): Genetic Structure and Phylogenetic Relationships of Capsicum chinense (doi:10.21273/JASHS.137.4.250)
• WIPO Lex: Declaratoria General de Proteccion de la Denominacion de Origen "Chile Habanero de la Peninsula de Yucatan" (Mexico, 2010)
• Delaware State University Cooperative Extension: Scotch Bonnet (Ethnic Crop Series)
• Bosland and Baral 2007, HortScience 42(2): 'Bhut Jolokia', the World's Hottest Known Chile Pepper is a Putative Naturally Occurring Interspecific Hybrid (doi:10.21273/HORTSCI.42.2.222)