The process that turns this beer crystal clear also may impart trace amounts of arsenic.
Beer lovers might be alarmed to hear that beer can pick up small amounts of arsenic as it's filtered to be sparkly clear.
But researchers in Germany reported Sunday that they've found arsenic in hundreds of samples of beer, some at levels more than twice that allowed in drinking water.
When we checked in with experts about arsenic and the filtering process, which is also widely used in the wine industry, they weren't too surprised. That's because the filtering agent in question, diatomaceous earth, is a mined natural product that contains iron and other metals.
Originally published on Wed April 10, 2013 2:36 pm
Oh, Portland: the Hopworks Urban Brewery's "pub bike."
Credit Elly Blue/via Flickr
A humble creature that has long toiled in obscurity for the benefit of humankind is poised to win a small measure of the distinction it deserves: designation as Oregon's official state microbe.
It looks to be the first microbe to gain official state recognition.
The microbe in question, Saccharomyces cerevisiae, plays a key role in the state's economy. Without it, sugar would not become alcohol, and Oregon would not have a craft beer industry worth $2.4 billion.
Its state bird is a Western Meadowlark. Its state tree is Douglas Fir. Now Oregon wants a state microbe. Saccharomyces cerevisiae - try saying that twice - is a kind of yeast used in beer. And State Representative Mark Johnson thinks making it Oregon's official microbe is a great way to celebrate the state's craft beer industry. Oregon is also proud of its wine. A type of dirt that's used to grow pinot noire grapes is the state's official soil.
Ernie Button was putting a Scotch glass left out overnight into the dishwasher when he noticed something — a white, chalky film on the bottom of the glass. He held it up to the light and, upon closer inspection, could see a series of fine, lacy lines running along the inside of the glass.
As a hobbyist photographer whose work often focuses on showcasing the beauty of everyday objects, Button was intrigued by this discovery. "Wow, there's something to that," he recalls thinking.