Sorry if this sounds a little rude, but I feel you should be totally aware of food hygiene methods, before even thinking of opening any food outlet. People should be able to trust your cooking unreservedly
If we ignore the legal aspects (which are, of course, very important if one is not to be closed down prematurely), would you not agree that the rest is either common sense or overkill ? Before we became obsessed with 'Elf 'n' Safety, our restaurants, cafes, pubs and so on all served (in the main) good wholesome food that all ate without compunction. And very few got food poisoning. Likewise our grandmothers prepared meals for families of fourteen, using a single knife and a single board to prepare meat, vegetables, fish and so on, and again, food poisoning was virtually unknown. Now we have to have colour-coded boards, colour-coded knives, multiple sinks, and all of the other paraphernalia that are necessary only if you don't think about what you are doing. I still have one board, one knife, and prepare everything on them and using them. And I have /never/ had food poisoning as a result of this, nor has my wife or any of our guests.
Bob, I don't think there's any evidence that Vinders lives/works/wants to open a T/A in Thailand; you may be confusing him with Missy. Or maybe you were answering Missy and I am confused by Vinders' more recent question !
** Phil.