Threat of a matcha shortage concerns U.S. businesses: "Uncharted territory"

Teahouses and other businesses in the U.S. are bracing for a shortage of matcha, the bright green powder imported from Japan and used to make drinks and food.

Demand for matcha drinks and snacks has surged in recent years, spurred by social media and possible health benefits.

"The color — it's a very bright green color, very beautiful color," said Silvia Mella, the owner of the New York City teahouse, Sorate. "Matcha became a huge trend."