Aired Tuesday 8 October, 3:00am - 3:30amon Quest +1

How Do They Do It?

Series 15 Episode 15

How do they produce 99 of America's raisins in California's San Joaquin Valley? Plus, how do they make the world's oldest type of paper?

Category
Documentary / Educational / Science
Original air date
30/12/2018
Cast and crew
  • Chris BroylesNarrator