Season 15 Episodes20
Discussion
0 comments
Join the conversation
Share your take and reply to other fans.
No comments yet
Be the first to share your thoughts on this episode.


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?
0 comments
Join the conversation
Share your take and reply to other fans.
No comments yet
Be the first to share your thoughts on this episode.
"Raisins, Showers, Papyrus" is episode 15 of How Do They Do It? season 15. It aired on December 16, 2017.