French people scandalized by pints of less than 50 cL: but by the way, what does this measure correspond to?

In Paris, two beer-loving buddies launched an Instagram site and account (currently followed by 12,000 people) to denounce a funny ride: bars that serve pints... of 37.5 cl. And almost everyone is allowed to take it. Pints at 50 cl.... or almost: cheating in the ladle In bars, the affair often goes unnoticed. Yet, for a few months, two thirty-year-old Parisian friends have decided to raise the lid (or rather the foam) on a deceptive practice for…

The collective "balance your pinte" denounces bars that do not serve pintes at 50 cL. Except that in France, technically, this measure does not exist.