I applied online, with my resume and application, which was immediately followed by an assessment test that takes between an 1 and 1 1/2 hrs. It mostly dealt with possible situational scenarios involving coworkers, safety issues and other issues that may arise. Answer using common sense of what you feel the best courses of action would be without overthinking it. Don't worry too much if you're uncertain of the best course on all the questions, because of how the test is structured. While the scenarios are slightly different, they are basically asking the same thing which helps those who may struggle with a few answers, but helps filter out those who may not really have a clue what the best course of action would be, so your answers should reflect what you believe to be correct.
The following day, I received an invitation for an on-site interview which involved a brief instructional video of the hands on assessment that involves the slightest taste of the job you'll be doing. You'll be given a very small order to fill in which you'll have 15 minutes to complete. Of course, they are watching to see if you fill the order correctly and efficiently, but following instructions and safe working habits are equally as important. After the assessment, they ask if you'd like to continue with the hiring process without giving any indication on how well or poor you performed. They really shouldn't have to anyway, because you should already have an idea how you performed.
In any event, they were very friendly and professional prior to and following the hands on assessment. During the assessment, however, to maintain fairness and equality, you'll find that even the Pepsi machines are warmer and more compassionate. Once they yell "Time", they immediately stepped back into their human form that you had held friendly conversations with just 15 minutes prior.
The process for me is still ongoing as they evaluate everyone's results.