Anaheim vs NuMex Big Jim: Everyday Roaster or Giant New Mexico Chile?

Choose NuMex Big Jim for large rellenos, wide roasted strips, and freezer batches. Choose Anaheim for easier shopping, smaller portions, and flexible everyday cooking.

Anaheim peppers beside larger NuMex Big Jim chiles for a practical roasting and relleno comparison
Quick Comparison

Anaheim Pepper measures 500-2.5K SHU while NuMex Big Jim registers 500-3K SHU. That makes NuMex Big Jim about 1.2x hotter by upper SHU range.

Anaheim Pepper is known for its mild, grassy-sweet, lightly earthy when roasted flavor (Capsicum annuum), while NuMex Big Jim offers mild and sweet notes (Capsicum annuum).

Anaheim Pepper
500-2.5K SHU
Medium · mild, grassy-sweet, lightly earthy when roasted
NuMex Big Jim
500-3K SHU
Medium · mild and sweet
  • Heat difference: NuMex Big Jim is about 1.2× hotter by upper SHU range
  • Species: Both are C. annuum
  • Best for: Anaheim Pepper excels in everyday cooking and salsas, NuMex Big Jim in fresh salsas and mild recipes

Anaheim Pepper

Medium
500-2.5K SHU
USA · C. annuum
VS
1.2×

NuMex Big Jim

Medium
500-3K SHU
USA · C. annuum

Attribute Anaheim Pepper NuMex Big Jim
Scoville evidence 500-2.5K SHU 500-3K SHU
Heat Tier Medium Medium
vs Jalapeño n/a n/a
Flavor mild, grassy-sweet, lightly earthy when roasted mild and sweet
Species C. annuum C. annuum
Origin USA USA

Choose by pod size and kitchen job before choosing by heat. KTP's canonical ranges put Anaheim at 500 to 2,500 SHU and NuMex Big Jim at 500 to 3,000 SHU, so most pods occupy the same mild-to-medium neighborhood.

New Mexico State University reports a narrower 500 to 2,000 SHU average range for Big Jim and warns that its heat can vary from plant to plant. One pod can taste mild while another from a different plant carries a clearer burn.

Anaheim varies too because genetics, weather, growing conditions, and fruit age affect capsaicinoid production. A single number on a produce sign cannot guarantee the heat of the pepper in your hand.

For a low-heat meal, remove the pale placenta and taste a cooked piece before seasoning the whole dish. That check matters more than a pod-for-pod formula when the published ranges overlap.

Taste & Flavor, Side by Side

Anaheim Pepper
500-2.5K SHU
mild grassy-sweet lightly earthy when roasted
C. annuum
NuMex Big Jim
500-3K SHU
mild sweet
C. annuum

Both peppers begin with a green, vegetal flavor and become sweeter and more rounded after roasting. Anaheim usually gives a clean, mild background, while Big Jim supplies more flesh and a fuller roasted-chile presence in each pod.

A fresh Anaheim is often narrower and easier to cut into modest strips or dice. Its lighter footprint works in eggs, soups, casseroles, and sauces where chile should support the other ingredients.

Big Jim's broad, fleshy wall makes a larger roasted sheet. Charring adds smoky bitterness at the surface, steaming loosens the skin, and peeling exposes soft flesh that can be chopped or laid flat around a filling.

Ripening either cultivar to red increases sweetness and opens drying uses. Green pods remain the practical choice for this comparison because produce markets and seasonal roasters commonly sell them at the mature-green stage.

Anaheim Pepper
Medium
NuMex Big Jim
Medium

Big Jim has the physical advantage in chile rellenos. NMSU calls the cultivar a favorite for the dish because its large pod creates a generous cavity, while the broad shoulder gives cheese, meat, beans, or grain more room.

Choose straight, intact fruit for stuffing. A torn shoulder leaks filling during frying or baking, and a sharply curled pod is harder to seed without splitting.

Anaheim handles everyday chopped applications with less leftover pepper. Roast it for enchilada sauce, fold diced flesh into scrambled eggs, or add strips to burgers and breakfast burritos.

Big Jim also works in those dishes, but measure the prepared flesh by cups or grams. One large pod can replace several small Anaheims, so equal pod counts distort both volume and moisture.

Opened Anaheim and NuMex Big Jim peppers showing different stuffing cavity sizes

Choosing Between the Two

Choose NuMex Big Jim when the pepper itself is the structure of the dish: whole rellenos, wide roasted strips, or a large batch for the freezer. Its documented average dimensions and thick flesh make the extra size useful rather than decorative.

Choose Anaheim for easier shopping and smaller everyday portions; It delivers the same broad style of mild roasted green-chile flavor without requiring a specialty grower or leaving a large amount of prepared pepper.

Either cultivar can replace the other in chopped sauces, soups, eggs, and casseroles when you measure the roasted flesh by volume. Expect Big Jim to need fewer pods.

For whole stuffing, wait for the correct shape instead of forcing the swap. Several narrow Anaheims produce several smaller portions. They do not create one Big Jim-size cavity.

Using One in Place of the Other

Review the choices for when Anaheim is unavailable. Swap Anaheim and NuMex Big Jim at 1:1 by prepared volume or weight in chopped cooked dishes.

Do not swap them at 1:1 by pod count. Big Jim's average fruit is large enough that one pod can contribute far more usable flesh than a small Anaheim.

For rellenos, match the number of servings first. Use one intact pepper per diner and accept that Anaheim makes a smaller portion.

For freezer batches, buy by raw weight, then record the cooked yield after roasting and peeling. That note gives your next batch a better estimate than a generic pepper count.

Cultivar Identity

Anaheim and Big Jim are close relatives, but the names do not describe the same cultivar. NMSU identifies both as cultivars within the New Mexican pod type, whose breeding history begins with New Mexico No. 9.

Anaheim seed originated in New Mexico and later traveled to Anaheim, California, where growers maintained it as a widely cultivated long green chile. The name now appears in supermarkets far beyond California.

Dr. Roy Nakayama released NuMex Big Jim through NMSU in 1975. The university measured mature green fruit at an average 7.68 inches long and 1.89 inches wide, with thick, smooth flesh and a moderately flattened body.

That named release matters when you buy seed. The labels long green, Anaheim, Hatch, and Big Jim describe a market type, a cultivar, a growing region, and a specific NMSU cultivar respectively.

Whole and cut Anaheim and NuMex Big Jim green chiles showing differences in pod width and cavity size

Roasting Yield

Pick Big Jim for a freezer batch or a tray of roasted green chile. Fewer large pods cover the grate, and each peeled pod returns broader pieces, so stemming and peeling take less work per cup of usable flesh.

Anaheim is more convenient when dinner needs only one or two peppers. The smaller pod is easier to fit into a compact broiler pan, and leftover roasted flesh is less likely.

Use the same roasting technique for either cultivar: blister every side over a grill, flame, or broiler, then cover the hot peppers for 5 to 10 minutes. UC Agriculture and Natural Resources recommends this resting step because trapped steam helps release the skin.

Do not rinse peeled peppers under the tap. Water carries away roasted juices and flavor. Wipe away stubborn char with a damp towel instead.

Blistered Anaheim and NuMex Big Jim peppers resting after roasting in separate trays

Batch Yield Matrix

Use prepared volume for sauces and cavity size for stuffed peppers. The matrix below turns those two rules into a starting decision without pretending that every harvest produces identical pods.

Kitchen jobBetter first choiceReason
One breakfast or small soupAnaheimA smaller pod limits leftovers
Freezer-size roasted batchNuMex Big JimMore flesh per pod reduces handling
Whole chile rellenoNuMex Big JimBroad walls provide a larger stuffing cavity
Recipe measured in chopped cupsEitherPrepared volume removes the pod-size mismatch

Treat the table as a shopping guide, then inspect the actual bin. A large Anaheim can outperform a small Big Jim, and damaged walls erase the stuffing advantage.

Buying True Big Jim

Buy Anaheim when availability matters most. Mainstream produce departments commonly use that label, while true Big Jim is more likely to appear through New Mexico growers, seasonal roasting stands, farmers markets, and specialist seed sellers.

Look for a cultivar name on seed packets and plant tags; Hatch chile means the crop came from the Hatch Valley. It does not prove that the seed is Big Jim.

Fresh pods should feel firm, heavy, and taut. Soft patches lower usable yield, and split shoulders make stuffing difficult even when the fruit is impressively long.

For roasting, choose fairly flat sides that can contact the heat evenly. For rellenos, prioritize an intact shoulder and a cavity wide enough for the planned filling instead of chasing the longest pod in the box.

Editorial Review
Editorial Standards: Heat levels, substitutions, and core comparison claims are checked against available source material before publication.
Review Process: Prepared by Know The Pepper Editorial Team (Editorial review desk) . Last updated August 2, 2026.

Anaheim Pepper vs NuMex Big Jim FAQ

Not reliably. KTP lists Anaheim at 500 to 2,500 SHU and Big Jim at 500 to 3,000 SHU, while NMSU reports a 500 to 2,000 SHU average range for Big Jim and notes plant-to-plant variation.

No. Both are cultivars within the New Mexican pod type, but Big Jim is a specific NMSU cultivar released in 1975 and Anaheim is a separate cultivar whose seed moved from New Mexico to California.

NuMex Big Jim is usually better because its broad, fleshy pod creates a larger stuffing cavity. Anaheim works when smaller individual portions are acceptable.

Yes in chopped cooked dishes. Replace by prepared volume or weight, not pod count, and expect to use more Anaheim peppers.

No. Hatch identifies a New Mexico growing region, while NuMex Big Jim identifies a cultivar. A Hatch-grown pepper may be Big Jim or another New Mexican cultivar.

Sources & References
Sources Listed
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