Food & Drink - 54 free documentaries about the history of food.
Start with Why Was Baking The Most Deadly Job In The Victorian Era? (53 min, Absolute History), then The Food That Built America: Pizza Hut's American Empire (S2, E1) (45 min, HISTORY). All 54 documentaries here are free to watch from their makers' official uploads. To read deeper, the top-rated book on the history of food is Salt by Mark Kurlansky.