Why people love Colorado’s signature chile pepper, according to the man who developed it

In The NOCO

These shorter, colder days over the midwinter holiday are the perfect time to break out that bag of roasted Pueblo chile peppers some of us have kept stashed in the freezer since the fall. They're just waiting to be turned into a big batch of spicy green chile.

And for many pepper aficionados, only the Pueblo chile will do.

But the popularity of these Colorado-grown peppers is a relatively recent phenomenon. Farmers in Pueblo and other parts of Colorado have been growing different kinds of peppers for decades, but the state didn’t really have its own signature variety of chile until the early 2000s.

That’s when Dr. Michael Bartolo, an agriculture professor with Colorado State University, developed the unique Mosco variety of the Pueblo chile. And in a few short years, they’ve become a regional rival to New Mexico’s more famous Hatch chiles.

Host Erin O’Toole spoke with the now-retired Bartolo earlier in the year to learn more about why chiles are such a point of pride for some people. It was one of our favorite science-related interviews of 2024, which we’re revisiting this week.

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Host and Producer: Erin O'Toole
Producer: Ariel Lavery
Executive Producer: Brad Turner

Theme music by Robbie Reverb
Additional music by Blue Dot Sessions
In The NoCo is a production of KUNC News and Community Radio for Northern Colorado.