Hi MDG,
To me having videos isn't a must for hygiene/ safety... training - most of the time it's quite boring, employees are not stimulated, eventually you're not sure to reach your purpose (the knowledge of employees related to food safety and safe behaviour).
What I can just suggest you is to take some photos of what 'you, employee have to do', and 'what you have not to do' implying them : you just have to take the worse ways of working asking them to sham some bad actions - with very dirty habits, without any saftey equipment, bad manuf. examples depending on the manufactured product, e.g some meat stored on the floor, dirty equipment, beef+pork+lamb on the same table for meat industries...Other participants can give their opinion about what is right/ wrong, it's much more concrete for all of them. Proposing this session at hte end of the training will allox youn to have an 'evaluation' and to keep them awaken.
Of course talking each other having a dynamic training is more efficient than describing some posters not directly related to your manuf. product,
That's my opinion, trainings I tought in this way were quite efficient/ behaviour, but you have so many efficient training that is not THE solution!
Regards,
Emmanuel