Where can I find Kidney tea in Fernwald?

Kidney tea can also be found in these cities:

Buseck Butzbach Giessen Hüttenberg Langgöns Lich Linden Lollar Mücke Pohlheim Rabenau Rockenberg Staufenberg Wettenberg Wetzlar

You can also find this in Fernwald:

Everything From Milk Baking Mixtures Cream Stiffener Spreads Savory Food For Diabetics Menus With Meat Fruit Spritzers Filter Coffee Baguette Roll Salt Sticks