Sweet Treats

S1 E1: Host Gregg Wallace channels his inner-Charlie Bucket as he enters chocolate factories across the U.K. His mission: to explore the extraordinary machines that make some of our favorite sweet treats (and maybe sample one or two along the way). Witness the ingenious engineering and science that goes into satisfying the world's sweet tooth, from a river of chocolate that "enrobes" biscuits to a high-speed machine that individually wraps 24,000 candies an hour to a state-of-the-art mixer that produces 70 tons of cake dough a day.