Oooh I love doing training courses!
These are some things I've done throughout the years. I've also had a situation where I've had to deliver training at the end of a shift and it's not ideal.
Ideally some of the things I do make things fun or at least if they don't, they make it less likely for people to fall asleep!
First of all, get people contributing, preferably while standing up as much as possible. This is easy to do with food safety or
HACCP. For example, early in the training you could ask people to come up with ideas in groups for physical, chemical, biological or allergenic hazards. Organise some flip charts so it's really difficult for people to sit down! (Trust me, it works!)
Hmm, other things I've done. I've had a lot of people who don't speak English as their first language before so I often use pictures in the presentation and I also use flashcards. One thing which I've used now in two factories are flashcards on handwashing. This shows each of the 5 steps of handwashing that I get 5 people to hold a card up each and the others to put them in order. It might sound really silly but it leads to people interacting and I had a test paper question on it which people regularly used to get wrong until I brought in the flash cards.
I also do some "spot the problem" games where there are photos of dirty or badly organised workplaces and they're asked to identify the issues with them.
Where possible as well, I try to demonstrate things in their place of work. For example, we had loads of problems with people putting their clothes on in the wrong order for high care so I changed the training to end on this where I'd take the team to the changing area and take them through it all step by step. Works much better now.
I hope that's helpful.