Source: http://gizmodo.com/science-finally-gives-us-a-way-to-authenticate-premium-1502035564
That fancy premium chocolate from Tanzania that you spent $10 on at Whole Foods last night might not be as fancy or premium as you think. Lower quality cacao is often mixed into even the best chocolate, which is precisely why scientists have now developed a method for authenticating the varietal purity and origin of cacao beans.