It is generally only accepted for tour groups. Everyone should understand what it means. There is no charge. There is a staff member to explain to you. The front is a display hall, about 2 rooms, and the last side is a hypermarket. It is the one you just saw. It will let you try it for free, but it is still quite delicious. There are about 60 more, there is a 200.300, the price is different, see what you want to buy