Coffee has gotten a lot more expensive in the U.S. as tariffs seep into the price tag. That's putting a strain on roasters, who have no choice but to pass on some of the extra cost to coffee drinkers.

Hundreds of coffee beans tumble inside a tall metal machine at Broadway Roasting Company in Kansas City, Missouri.

Co-owner Jon Cates and his team, equipped with stopwatches and clipboards, watch closely to make sure the beans roast for just the right amount of time.

“At this point, it's like seconds could make a huge difference on the flavor of the coffee," Cates said, as the beans approached the end of their cycle.

The team roasts hundreds of pounds of coffee each week, stocking the company’s cafe down the street, along with other businesses nearby.

But long before the beans enter the

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