because they are concern of their hands arthritis health, the usage of alcohol sanitation solutions seems to be the same problem.
I was about to suggest the same thread as Simon. Arthritis with alcohol sanitiser? That's a new one!
I agree that there is a training and motivation issue here. You need to train, ensure they're supervised, correct non conformity, review etc.
First of all, get their boss on board. S/he's going to be the person disciplining them if they do it wrong.
So, secondly, I'd look at their objections. They believe washing and sanitising their hands will lead to arthritis. I would make it clear that it is a requirement of entry to any food factory in the world. If they still object, tell them to get a doctor's report to that effect (at their expense.) I would also talk to HR on this because if they are subject to a medical issue which would prevent them from doing their job, in the UK anyway, they could be subject to dismissal on the basis of capability.
Secondly, you need to spend time explaining why you need to wash your hands. Don't just think about products because presumably they don't touch the product but they will touch door handles which will then get touched by food handlers.
Explain the risks to them; not only microbiological but consider chemical risks. Have they been handling oily equipment for example?
Record all of this training, get them to sign off against it. Put into the documents that it is a disciplinary offence not to follow the rules and make it clear to their boss that if they continue not to wash their hands, there must be a disciplinary action made. People change behaviour based upon the perceived consequences. If you can't persuade them through the risks to the consumer (because they probably feel remote), you have to persuade them due to the risks to their job. Hopefully it will only take one verbal warning before everyone gets the message.
The above is fairly tough and I think you have to balance it up by forming a relationship with them in other ways, e.g. providing specialist hand cleaning fluids just for them in their workshop (because oil is tough to remove with the standard soap gels) and talking and listening to them about their concerns and their difficulties.
I can't urge you enough to build up that relationship with their manager. It's so powerful if people hear a united front.
Edited by GMO, 10 January 2012 - 08:37 AM.