Why is the beer, Bavaria 8.6, called 8.6 if the actual alcohol percentage of it is only 7.9?

Question

Why is the beer, Bavaria 8.6, called 8.6 if the actual alcohol percentage of it is only 7.9?

Answer 1

Cuz in reality it was invented by a French person and they didn't know how to count that well, you know what the education system is like there and for some stupid reason, even though he saw it was 7.9 he just went ahead and wrote 8.6

Gosh, count on the french to s***w things up!!

Answer 2

There's more than one way to measure alcohol content. It can be by weight and by volume.

It may be 8.6 by another measure