Where can I find Mustard in Kefermarkt?

Mustard can also be found in these cities:

Alkoven Altenberg bei Linz Bad Zell Engerwitzdorf Freistadt Gutau Hellmonsödt Liebenau Linz Lugendorf Mittertreffling Pregarten Ried in der Riedmark Sandl Sankt Georgen an der Gusen Sattledt Schenkenfelden Schönau im Mühlkreis Steyregg Unterweißenbach

You can also find this in Kefermarkt:

Candies Fruit And Vegetables Sausage Packed Rocket Vanilla Sugar Jelly Popsicle Meat Coffee Drinks Normal Rolls