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Cold brew has changed the coffee business

Cold brew is a preparation of coffee grounds steeped in room-temperature water for six to 20 hours to make a concentrate that can be diluted with water and served over ice.

New York

SUMMER officially starts this year on June 21, but that is only the solstice, the day when the sun reaches its highest position in the sky. Down on street level, summer really begins on the first humid, sun-streaked day, when even the thought of sipping a hot cup of coffee is too...