I don't know... how long will it take for the bread to get there?  This should be still summer over there and I worry if the loaves will become moldy by the time he gets them.  You can use express service but it's gonna cost an arm and a leg for a loaf of bread.  Do you know another family there where your son can have a share of homemade fresh bread?  I have some clients whose kids are working and/or attending university in Shanghai and they go to visit each other from time to time.  The lone kids get to have family meals once in a while and that's a very nice treat.