This story originally aired April 8, 2017.
Edwin Martinez runs Onyx Coffee in Bellingham, Washington. The shop is a bit unusual. Martinez calls it "a mad scientist lab" for studying human behavior with coffee.
He sells just coffee and nothing else, not even cream. The coffee comes straight from his family’s farm in the mountains of northwest Guatemala.
"So if you love coffee, you are just in seventh heaven." said Martinez. "But if you aren't here for the coffee, this is the most disappointing coffee house in America."
In his "mad scientist lab," Martinez learned that people's relationship with the popular beverage wasn't what he expected. Sound Effect contributor Alex Ashley talks with Martinez about why he opened Onyx Coffee and how his perceptions of coffee culture in the Pacific Northwest have changed.