To add to the Asian shop list for Bern area:

A Châu Trading AG‎
Könizstrasse 221
3097 Liebefeld
031 971 38 71

You can get the long-life tofu in a vacuum pack from them cheaply. You have to ask for it though as they don't always display them. Lots of dried ****ake mushrooms etc. A bit of a chaotic store but I think their main business is to supply Chinese restaurants.