You make a load of soap and give it to people for a while before you sell!
As I said in the other thread, I am looking in to this so that I can tell if it is even possible for me to meet the legal requirements at the moment. I am not thinking of selling a bar to someone for a very long time indeed.
But I know that this EU process will take time to understand and get the things aligned properly, so I'm getting that sorted while working on recipes and so on. A good long time of making soap, giving it to people and getting feedback, going back to the drawing board and redoing it, finding out what people want.
Then I'll take these recipes and get them signed off for selling! I think I would never get a new soap signed off with out having first tested the market a little to see if people love or hate it. For example, I made a lovely soap and used Rosemary & Thyme EOs. In the combination, I don't actually like how it works together to be honest! So if I had got that recipe signed off thinking it would sell, I could then be out of pocket when it turns out a little bit different to how I imagined it.