Oettinger is the biggest brewery in Germany in terms of total beer output. Headquartered in Oettingen, Bavaria, Oettinger does not advertise its products, does not involve any intermediaries and has very few employees since its brewing process is largely automated. This brewery gets quite a lot of hate in Germany (even my students make fun of it) and was once king of the cheap beers in Germany before the 29 cent discount beers started popping up in supermarkets.