Customers hand over well-used egg cartons to be filled at the local store, or unscrew the lid of their olive jar, washed and ready to receive the next lot.
The operator of Taco Bell and KFC restaurant chains has made its Pizza Hut chain into a nice restaurant in the country, deemed by some contemporary Chinese to be a great place for a first date, while introducing products such as fried dough sticks, egg tarts and shrimp burgers to suit local tastes.