Corking in Jalapeno Peppers
October 22, 2010
I picked a fair amount of various peppers over the last few days in anticipation of frost soon to come. Pictured are some of the jalapeno peppers. See the thin white striations on the lower three jalapeno peppers? These striations are known as corking. Some believe that corking is an indication of that jalapeno pepper being hotter than those without corking. However, Cook's Illustrated tested this theory and found no correlation between corking and heat of the individual jalapeno pepper. Rather corking is a genetic trait this this particular variety of chili pepper that has no bearing on the heat level of the pepper. Corking is a desired trait for jalapeno peppers grown in Mexico. Some hybrid varieties of jalapeno peppers are less prone to corking.