Do you like your jalapeno spicy? If so, you may be wondering if the heat of the pepper increases as it cooks. The answer is yes, the heat does increase as a jalapeno cooks. However, this increase is not uniform across all parts of the pepper. In fact, the hottest parts of a jalapeno are typically located near the stem. ..


Jalapenos are a key ingredient in most Mexican, Chinese, and Thai dishes. It’s also an amazing addition to barbeques and cookouts. Jalapenos’ most distinctive feature is their hotness, but what about when they’re cooked? Do jalapenos get hotter when cooked? Are there ways to make it mild? Can you maintain its heat?  Read on to find out!

Why Are Jalapenos Hot?

The keyword is capsaicin. The more capsaicin a jalapeno has, the hotter it is.  Capsaicin is mostly concentrated in the center of the pepper. It’s found in the seeds and the pith that connects the seeds to the body of the pepper. It’s usually the hottest part of the jalapeno. 

Do Jalapenos Get Hotter And More Spicy When Cooked?

The short answer is no. If anything, cooking reduces the heat of the jalapenos.  Grilling and roasting give jalapenos a smoky, sweet flavor, but it doesn’t kill all the taste. It simply reduces the amount of heat. 

What Does Heat Do to Jalapenos?

Heat breaks capsaicin and releases it, which reduces the heat of the pepper. The more a jalapeno is exposed to heat, the milder it becomes. When exposed to a direct flame, the jalapeno’s skin loosens and blackens. Losing the skin means losing some of the heat. 

What Happens When Adding Jalapenos to a Cooked Dish?

When cooking jalapenos in a dish, the heat releases the capsaicin from the pepper into the dish. Capsaicin is a water solvent that quickly dissolves while cooking, giving the dish a spicy flavor.  Interestingly, if you cook for a long time, both the jalapeno and the dish lose all heat. This is because capsaicin is further released out of both by the steam. Capsaicin is steam-volatile. This means that it can be removed from the dish with the steam of cooking. The more steam from the increased cooking time, the more capsaicin is lost.

How to Maintain the Heat of Jalapenos?

Here are some tips to help you keep your jalapenos scorching hot: Old jalapenos are red and hot. When jalapenos age, they begin to develop lines on their skin. The membrane, which is the layer that surrounds the seeds, includes much of the heat of the jalapenos. The less you expose the jalapeno to heat, the hotter it remains. Roast over high heat to reduce the roasting time. If your cooking will take long, add the jalapenos at a later stage to maintain their heat as much as possible.

How to Reduce the Heat of Jalapenos?

What if you want to make your jalapenos milder? Here are some tips that can help you: The capsaicin is concentrated in the seeds and the pith. To make it mild, remove them from the pepper to lose most of its heat. Prolonged cooking releases the capsaicin from the pepper and the dish. Steam takes the pepper’s heat away. Acidic ingredients reduce the heat of the jalapenos. You may even soak your jalapenos in water and vinegar. Leaving jalapenos in a bowl of water for about 30 minutes before cooking reduces the heat considerably. Soak jalapenos in milk for 15 minutes to make it a lot milder.

The Difference in Taste Between Red (ripe)  and Green (unripe) Jalapeños

Red ripened jalapeños are somewhat sweeter than the unripe green peppers. Red ones are typically hotter vs the green jalapeños.