Planet Money | 23 October 2019 | 0h 21m | Listen Later 
| iTunes
Backgrounds the development of coatings to ensure french fries stay hot and crisp rather than cold and soggy – especially given the challenge of fast food delivery times.
Planet Money | 23 October 2019 | 0h 21m | Listen Later | iTunes
Backgrounds the development of coatings to ensure french fries stay hot and crisp rather than cold and soggy – especially given the challenge of fast food delivery times.