Head to head
Jalapeño vs Poblano
Both are thick-walled and mild, but the poblano is far larger, darker and milder, and it needs roasting and peeling where a jalapeño does not.
| Jalapeño | Poblano | |
|---|---|---|
| Heat (SHU) | 2,500–8,000 | 1,000–2,000 |
| Species | C. annuum | C. annuum |
| Origin | Mexico | Mexico |
| Ripe colour | Red | Dark red-brown |
| Wall thickness | Thick | Thick |
| Days to maturity | 70 | 65 |
| Flavour | bright, grassy, slightly sweet, crisp heat | earthy, rich, slightly sweet, mild heat |
Figures from each variety's own record. Heat is a range because heat is a range — see the Scoville scale for why.
The difference
The two mild workhorses of Mexican cooking, and the pair a recipe most often lets you choose between. The poblano is much the bigger: broad, heart-shaped and almost black-green, against the jalapeño's blunt finger. It is also considerably milder — mild enough that most people eat it as a vegetable without noticing heat at all.
The practical difference is the skin. A poblano's skin is tough and does not soften with cooking, so it has to be blistered over a flame, sweated in a covered bowl and rubbed away before use. That step is not optional and it is where most of the flavour develops, turning it from green and raw-tasting to deep and smoky. A jalapeño needs nothing of the kind and is used straight.
Both stuff, and both are used for it, but they produce different dishes: chiles rellenos are poblano, and jalapeño poppers are their smaller, hotter cousin. Both also have a dried life — the poblano becomes ancho, the jalapeño becomes chipotle — and those two are no more interchangeable than the fresh forms.
Can you substitute one for the other?
Yes, with adjustment. Poblano for jalapeño gives a milder, deeper result and much more of it. Jalapeño for poblano works in a sauce but not for stuffing — the size difference is the dish.
Other comparisons
Or put any two varieties side by side in the compare tool.