Clean Caffeine?

Did you ever wonder what your local coffee shop does with all its leftover muffins and old coffee grinds at the end of the day?  Most of course go right into the trash.  But Starbucks in Hong Kong, which alone produces more than 5,000 tons of coffee grounds and uneaten baked goods, has implemented an innovative idea: turn the trash into laundry detergent and bioplastic!  The process is done at a bio-refinery.  The stale baked goods are mixed with fungi to break down the carbs into simple sugars, then the mix is fermented.  The bacteria transforms the sugars into succinic acid, which is the agent that ultimately turns the wasted food into detergent, among other things.