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Short Wave

Why Weed's Signature Scent Has Changed Over Time

Short Wave

NPR

Daily News, Nature, Life Sciences, Astronomy, Science, News

4.7 β€’ 6K Ratings

πŸ—“οΈ 16 June 2025

⏱️ 13 minutes

🧾️ Download transcript

Summary

The skunky smell of cannabis may be going out of style. NPR's science correspondent Pien Huang visited the grow facility for District Cannabis, which sells weed in Washington D.C. and Maryland. On her tour, she learned why cannabis smells the way it does. Plus, how many strains have been bred β€” to smells like lavender, citrus and even cookies.

Read more of science correspondent Pien Huang's reporting on this topic here, or check out the entire special series, "How safe is your weed?"

Questions about the science behind the mysteries, events and... smells... all around us? Email us at
[email protected] – we'd love to hear your ideas!

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Transcript

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0:00.0

The House of Representatives has approved a White House request to claw back two years of previously approved funding for public media.

0:07.6

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0:17.1

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0:22.6

Thank you.

0:24.3

You're listening to Shortwave.

0:27.2

From NPR.

0:29.8

Hey, Shortwavers, Regina Barber here.

0:32.3

And I love long walks.

0:34.3

And sometimes on my walks around the city, I get some distinct smells. One of them is

0:39.1

cannabis. I hear you, Gina. It's that skunky, gassy smell that whops out from doorways and windows

0:45.3

and people stoopes. It is that unmistakable smell of weed. Ping Wong, NPR health reporter,

0:50.5

friend of the show. I understand you went on a journey lately to learn about why cannabis smells the way it smells. Yep, it's true. It went to the depths of Western Maryland,

0:58.7

and today I'm going to take you along with me. We're going to a hydroponic cannabis grow farm

1:04.6

where they produce 15,000 pounds of cannabis flour each year. That is a lot of pot.

1:10.5

That's what he said. It's a lot of pot. That's what he said.

1:12.0

It's a lot of weed.

1:13.4

So who's he?

1:14.6

So that's Andrash Kirshner.

1:16.3

He's the founder and head grower at District Cannabis.

1:18.7

They sell in Washington, D.C. and in Maryland.

1:21.5

And he's going to be our tour guide today.

1:23.3

He's going to take us around the facilities.

...

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