"A coating of bright red powder on the insides of a pair of 100,000-year-old abalone shells is evidence of the oldest known art workshop, a new study says. The powder was found inside two shells in Blombos Cave near Still Bay, South Africa (map). The substance is the dried remains of a primitive form of paint made by combining colorful clay called ochre, crushed seal bones, charcoal, quartzite chips, and a liquid, such as water. "
Beers that have a medicinal or plastic-like flavor may have traces or chlorine or iodine cleanser left in them. Chlorinated water can also cause these, and some yeast types can be the culprit. #sensoryschool #offflavors #tastingbeer sources: Tasting Beer, More Beer