Are there any other chocolate factory tours, other than Broc Fabrique , which is closed for repairs while we are near there. The visitor center will reopen on March 21, 2015 according to an SBB agent.We will Be in the B/O region and Lucerne.
The Swiss Tourist Board has a lot of free info; try http://www.myswitzerland.com/en-us/interests/food-and-wine.html. Rick's guidebook also describes Alprose Chocolate Factory near Lugano.
Lindt und Sprüngli offers either a tour, or some kind of visitor experience. My brother visited and they give you some kind of cooking lesson where you make your own chocolate treat. The factory is located in Kilchberg, right on Lake Zürich, just to the south of the lake's namesake city.