After the prescribed time the machine tells you it's done and you pull the product and wrap it in bags or place in boxes.
It's much more efficient to truck around glop to machines in the stores than it is to truck around finished product to the stores.
The alternative is to produce products with incredibly long shelf lives ~ they're a little chewier, but they can be sold in gas stations everywhere!
The Mexican BIMBO Corp are already pimping out Sara Lee and now they might get Hostess.... someday they might even nab Little Debbie....