HOW HOT IS IT?
Hot Chili Peppers on the Scoville Scale
If you are not well-versed in the wide variety of peppers, you probably don't know the level of spice each type of chili pepper contains. Whether it's a poblano (dried are called ancho), jalapeño, habanero, or serrano, each has different degrees of heat which are determined by how much capsaicin (a compound responsible for the pungency) is present in the pepper. Luckily, this capsaicin can be measured in Scoville Heat Units, or SHU, on the Scoville scale. This scale lists the peppers by how many SHU are in each pepper, from the thousands for milder peppers all the way up to the hundreds of thousands and even millions for the spiciest varieties.
» Read the full article here at The Spruce Eats