Study: Dark beer contains more iron
on 11/08/11 at 10:58 amBeer
Researchers find that a dark Spanish beer had the most iron while a pale beer from the Netherlands had the least.
A new study from the University of Valladolid in Spain reveals that dark beers have, on average, a free iron content of 121 parts per billion compared to the 92 parts per billion in pale beers and 63 parts per billion in non-alcoholic beers.
In addition to the nutritional value, iron is also a key component in oxidizing the organic compounds in beers, which provide the beverages with their taste.
In the case of pale beers, a filtering process that uses sedimentary rock of a porous nature may trap the iron in the beer, thus lowering the iron content.
A dark Spanish beer had the highest free iron count, with 165 parts per billion.
A beer from the Netherlands came in last, with only 41 parts per billion.