Video explanation
A pouch enters the chamber; a closed door and pressure plate squeeze orange liquid into a glass, then the chamber opens to reveal the pack.
Squeezing creates flow
Reducing the pouch volume forces liquid through its outlet, with reaction forces carried by the plate and frame.
Force and pressure differ
Pressure is force per area, so total force alone does not determine pressure throughout the pouch.
Illustrated comparison
The video compares machine and hand squeezing without independent test data. Force and juice-volume readouts belong to the demonstration.