Nonsense. There are a lot of factors that make a jalapeno hot. Ever notice some jalapenos have black skin coloring? Know why? These guys had more sun and developed that color and are hotter.
Most jalapenos are grown in Mexico. Growers have variety, season, and other factors to consider. More sun, more heat, and if it’s not hot enough, try serrano.
Lastly, jalapenos are one of the most dollar return crops per acre.All green peppers eventually turn red in time, making them even hotter.Touche.
Genetics are important when it comes pepper heat. But, so is soil. Ever wonder why sweet onio,s come from Vidalia, Ga.? The soil. Spicy pepper do better in a soil that tends towards the alkaline side. The more acid a soil the milder the pepper.