Hey there little one! Have you ever seen a vending machine? It's like a big box that you can put money in and then it gives you something back in return. Well, a French Fry vending machine is just like that, but instead of giving you a soda or a candy bar, it gives you French fries!
So first, people have to put in money for the French fries they want. Then, inside the vending machine, there are containers of pre-made French fries that have been cooked and kept warm. When the machines get a selection, they drop some of the fries into a compartment, and the person can grab their hot, delicious French fries.
But before the fries can be put in the machine, they need to be cooked first. People working at the French Fry vending machine factory cook the fries so they're tasty and crispy, and then they pack them up in bags to be put into the machine.
Thanks for asking such a cool question, little one!