I sat on a bar stool at the best beer pub in Leuven, not to say the best in all of Flanders, which means the best in Belgium, maybe the world. Of all the brews on offer at Café Metafoor, I chose the Affligem Dubbel, a dark malty ale, just sweet enough and strong enough, but not too strong. Like all true Belgian alehouses, no food was served, except for peanuts or chips, for the salt. I went for the …