Achado Twist invertors flip bottles and cans for quality control purposes too.
Coding batch numbers and best-before dates is sometimes easier if you can simply turn the container: Upside down, or just on the side (90 degree).
Poorly seamed beverage cans will expel liquid if they pass through the warmer upside down. Then they will be rejected at the fill level check.
Spinning liquid containers 360 degrees after filling will internally wet all surfaces, for more effective pasteurizing.