date:Apr 12, 2013
ic level in beer is higher than in the water used during brewing, this excess arsenic must come from other sources, he said. That was a mystery to us. As a consequence, we analyzed all materials, including the malt and the hops used during brewing for the presence of arsenic.
They concluded that the arsenic was released into the beer from a filtering material called kieselguhr, or diatomaceous earth, used to remove yeast, hops and other particles and give the beer a crystal clear appearance. Di