I wonder if it's like a No 2 pencil, where no single individual is capable of building one on their own. The skills, materials, and machinery are spread across numerous entities.
Almost there. They do the cut longways, then heat the halves until theyre malleable and then roll them into a circular shape. Then it's off to the hexagonal press to give them the signature flat edges.
I have been in automation for many years including food. Many people know the exact recipe. They most likely have the exact setpoints and quantities under version control.
Fun tidbit, managers at Starbucks plants are only able to change values slightly, going beyond a small variation requires override by quality department. It is literally built into the machine software.