Re: what is weissmaisdunst?
I have never heard this before - but yes, it exists. Here is the key:
"... gibt es in drei Ausmahlungsgraden: Maisgriess, Maisdunst und Maismehl."
Mais: what you use to make popcorn
Weiss: the color white (yellow also exists = gelb)
After Mais it is grinded, there are 3 filter granularities: "Griess", "Dunst", and "Mehl". So your weissmaisdunst has the middle granularity.