Yes, you can sell unpasteurised milk(raw) I used to do it in my commercial herd up to five years ago. Your first step is to contact your Food Team in your local council and they will send someone to see you to explain what is required. You then have to satisfy the Dairy hygiene Regulations. It is a long journey to get that coveted EU mark for your milk/yoghurt/cheese but perfectly do-able if you are determined. Unfortunately you will have to spend some money to get there but with practical skill and common sense you can do it! One point I would make is that if "profit" is the operable word, forget it because it really isn't profitable. It's very hard work to maintain the standards required and more of a lifestyle choice rather than a good business move!