Coffee peculiar process made from coffee berries eaten by the Asian palm civet, passing through its digestive tract, with the beans eventually harvested from feces. Coffee brewed from this process is among the most expensive in the world, with bean prices reaching $160 per pound or $30 per brewed cup. Kopi luwak coffee is said to have uniquely rich, slightly smoky aroma and flavor with hints of chocolate, resulting from the action of digestive enzymes breaking down bean proteins to facilitate partial fermentation. The next step in the process is the roasting of the green coffee. Coffee is usually sold in
Electronic waste in the United States of which has been documented to cause significant health problems in the surrounding area. Open burnings are the most common means of 'disposing of' e-waste and occur primarily in rural areas with low incomes of developing countries. Communities use open burning for a variety of functions: For direct disposal, it takes the least amount of man-power and is the cheapest option. For precious metal extraction, it can be an effective method to extract certain valuable metals, such as gold. The combustion of burning e-waste results in ash that contains fine particulate matter; a measure of pollutants that has been linked