And, You would never have believed that there is "clear glass" and "clean glass of beer ';…
and yet, there is, and reveals through video directed mainly barmen, the company Miller Coors, one of the biggest beer companies in the world.
According, Well, with video:
* a first and simple way to determine whether the glass is "fresh beer" is to see if bubbles stick to the glass walls or if foam falls quickly.
In this case, the glass there may be detergent residue, oil or other substances.
*The other way It is to throw salt into the glass: if uniformly cover the walls then the glass is "beer clean", if not, They want clean again.