Bay Area

New roots for green businesses

As the world economy increasingly collides with the limits of linear, “cradle-to-grave” production, more eyes are turning towards resource synergies, upcycling, and improved efficiencies to relieve some economic pressure and get more value with less waste. Take coffee. For every pound of coffee beans harvested (of which there were 17 billion in 2010, according to the International Coffee Organization), four pounds of pulp must be collected, and it is generally considered a waste product that is left in heaps to rot. But some companies, such as Equator Coffees & Teas and Thanksgiving Coffee, are supporting efforts to train farmers in Zimbabwe and Tanzania how to use coffee pulp as a substrate for growing oyster mushrooms.