Where can I find Yeast fresh in Wissen?

Yeast fresh can also be found in these cities:

Betzdorf Breitscheidt Daaden Gebhardshain Hachenburg Höhn Kirchen (Sieg) Kreuztal Peterslahr Reichshof Ruppichteroth Siegen Waldbröl Weitefeld Wiehl

You can also find this in Wissen:

Pudding Decorative Sugar Three-Grain Bread Cereals Delicatessen Sausage Spice Pastes Mashed Potatoes Raisin Roll Canned Sausage