How Do They Do It? S15E17 — Freshwater Pearls, Knives, Hippo Roller

How Do They Do It?•Season 15•Episode 17

Freshwater Pearls, Knives, Hippo Roller

Dec 19, 201722 min

How do they grow America's only freshwater pearls in Tennessee? How are the world's sharpest knives made, and how do they forge the world's sharpest knives?

Previous episodeE16 · Charcoal Briquettes, Soba Noodles, Vaulting Poles Next episodeE18 · Sugar, Feather Dusters, Balloons

Seasons17

All 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

Season 15 Episodes20

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Episode Summary

"Freshwater Pearls, Knives, Hippo Roller" is episode 17 of How Do They Do It? season 15. It aired on December 19, 2017.

Next: E18 · Sugar, Feather Dusters, Balloons Best of Season 15