system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How do commercial bread makers like Sara Lee and Pepperidge Farm get their loaves to turn out in a uniform size and shape every time?
gpt
Science and machines!

These companies most definitely have a research team on hand. They study everything about the product to make it the best they can. Chemistry, flour types, even yeasts and fermentation.This results in more controlled and better understood products.
 
The other half is factory bakeries. They mass produce their breads in machines. Because human hands have little to do with the bread making process, the product always comes out more consistent.