Anaheim Pepper vs Jalapeño, the 5× Heat Gap

Is an Anaheim pepper hotter than a jalapeño?

No, the jalapeño usually wins. UF/IFAS says the Anaheim is mild, usually about 1,000 SHU, with some varieties reaching 5,000². The jalapeño ranges from 2,000 to 8,000 SHU and averages about 5,000².

Anaheim

Jalapeño

Hotter

• 1,000–5,000 SHU¹Heat2,000–8,000 SHU²
• About 1,000 SHU²Typical podAbout 5,000 SHU on average²
• Heirloom fruits up to 7 inches long, 1.5 inches across²PodAbout 2–3 inches long²
• Green to deep red²RipensGreen, turning red after maturity²
• Rellenos, the stuffed fresh New Mexican chile³Best known asChipotle, once smoke-dried red³

A typical Anaheim has about a fifth of a jalapeño's heat, but a hot Anaheim can outrun a mild jalapeño.

Where do the two ranges overlap?

From 2,000 to 5,000 SHU, either pepper in your hand can land anywhere. Here are the three cases worked from the UF/IFAS figures¹.

That middle row is why a batch of roasted Anaheims sometimes bites harder than you expect. NMSU's garden guide adds a cause you can see in your own yard: water stress, temperature extremes, disease and insects all change a pepper's heat⁴, so a dry, hot August can push a mild Anaheim up its range.

Why does the heat vary so much?

Because the cultivar you buy decides it. New Mexico State University measured each chile it released, and its own Anaheim-type and jalapeño lines spread far apart⁵:

Most Anaheim-type lines here stay far under every jalapeño line; the one exception gets its own section below. So if you know the cultivar on the seed packet or the farm stand sign, you know far more than the generic ranges tell you.

How do you tell them apart at the store?

Length settles it for you. An Anaheim can run to 7 inches, more than twice the longest jalapeño, and it tapers slightly toward the tip with a wrinkled or folded stem end². A jalapeño you pick up stops at 2 to 3 inches.

Skin can help you with jalapeños. NMSU describes corky skin, or epidermal reticulation, as a jalapeño trait that its newer Spice lines were bred to lack⁵, so a pod with corky lines is very likely a jalapeño. Color will not help you. Both start green and turn red as they ripen², and NMSU notes some New Mexican cultivars ripen yellow, orange or brown⁴. If you see "Hatch" on the sign, you are looking at New Mexican pods, the same type your recipe calls Anaheim.

Can an Anaheim ever be as hot as a jalapeño?

Yes, if it is the right cultivar. NMSU bred NuMex Heritage Big Jim in 2008 as a more flavorful Big Jim, and it tests at 7,000 to 9,000 SHU⁵. That matches NuMex Primavera, a jalapeño NMSU bred for uniformly mild heat at 8,500 to 9,000 SHU.

The plain Big Jim behaves differently: NMSU notes its heat varies from plant to plant⁵, so two roasted pods from one bag can taste mild and medium. Your season adds to that. NMSU's heat guide says temperature and water change heat, and that a hot cultivar grown in ideal conditions comes out only moderately hot⁶. A stressed plant in your dry, hot summer pushes the other way.

The practical answer for you is the oldest test there is. NMSU calls tasting quick and cheap, if subjective⁶: cut a thin strip from each batch, taste it, and then decide how many pods go in.

Are Anaheim peppers and jalapeños the same?

No. Both belong to Capsicum annuum, but they are different pod types, the horticultural groups inside a species³. The Anaheim is a cultivar of the New Mexican pod type, and NMSU notes its seed came from New Mexico before it was taken to Anaheim, California⁵.

That history explains the names you see in stores. NMSU's Chile Pepper Institute uses "long green" for the New Mexican pod type also called Anaheim, with Big Jim, Joe E. Parker and Sandia among its cultivars³. If what you need is a mild chile big enough to stuff, the Anaheim against the poblano is the closer match.

How do they cook differently?

You roast an Anaheim and chop a jalapeño. The long green pod goes under the broiler or onto the grill for 6 to 8 minutes at 400–450°F, then you steam and peel it⁷ for rellenos, stews and green chile sauce. The jalapeño stays raw or goes into a jar: NMSU lists salsas, canning and pickling as its common uses⁴.

The red side of each plant tells the same story. A ripe red Anaheim goes into chile powder or a ristra, while a ripe red jalapeño becomes a smoky chipotle, so you get two very different pantry staples from the same color of pod.

How do you swap an Anaheim and a jalapeño?

If your jalapeño swap comes out too hot, split the pods first. About 89 % of a chili's capsaicin sits in the placenta that holds the seeds⁸, so scraping it out brings a jalapeño closer to Anaheim territory. For more bite instead, cayenne runs about 7.5 times a jalapeño by midpoint².

When you need a long green and can't find one, our Anaheim swaps list each stand-in with its heat worked out.

Can you pickle Anaheims the way you pickle jalapeños?

Yes, if you follow a tested jalapeño recipe and only change the kind of pepper. Penn State Extension says you can reduce the low-acid vegetables in a pickle recipe but never increase them⁹, and it allows a milder pepper in place of a hot one at the same total amount.

1. 1

   Start from the tested recipe

   The National Center for Home Food Preservation's pickled jalapeño rings use 3 pounds of peppers, 7½ cups of 5 % cider vinegar, 1¾ cups of water and 2½ tablespoons of canning salt for about 6 pints.¹⁰

2. 2

   Swap by weight, never above 3 pounds

   Replace some or all of the jalapeños with sliced Anaheims, keeping the total pepper weight at or under the recipe's 3 pounds.⁹¹⁰

3. 3

   Wear gloves while you slice

   The center says to wear plastic or rubber gloves and keep your hands away from your face.¹⁰

4. 4

   Process for the full time

   Pints take 10 minutes in a boiling-water canner up to 1,000 feet, 15 minutes up to 6,000 feet and 20 minutes above that.¹⁰

You will get milder, softer rings with Anaheims, since the pod is skinnier and far less hot. Keep the vinegar amount exactly as written; the acid is what makes the jar safe.

Which plant gives you peppers sooner?

The jalapeño, by a small margin. Texas AgriLife puts jalapeño transplants at 75 to 85 days to harvest¹¹, and UF/IFAS gives the Anaheim about 80 days to green fruit and more than 120 days to red².

1. 75–85 days

   First jalapeños

   Pick firm, fully grown green pods of 2 to 2.5 inches.¹¹

2. About 80 days

   First green Anaheims

   Pick them firm and crisp, before they change color, for roasting.²⁴

3. 120+ days

   Red Anaheims

   Leave some pods on the plant to ripen and dry for ristras or powder.²⁴

If your season is short, you can count on green pods of both and treat red Anaheims as a bonus. Our harvest timing pages give the ripe colors for each pepper.

What goes wrong when you mix them up?

The other mistake you can make runs the opposite way. Swap Anaheims into a jalapeño salsa pod for pod and you get a mild, bulky bowl, because each Anaheim brings more flesh and less heat. Chop a smaller amount, then taste and adjust.