Do you ever wonder what coffee shops do with all those leftover coffee grounds? Instead of tossing out all those grounds, why not put them to good use?
In 1995, Starbucks Coffee Company launched its Grounds for Your Garden campaign, which offers customers a complimentary five pound bag of used coffee grounds for the garden or compost pile just for the asking. Not only does the program reduce landfill waste, coffee grounds are a valuable source of nutrition for the garden.
So just how good are those coffee grounds for your garden? The folks at Sunset requested a lab analysis on Starbucks’ coffee grounds from the Soil and Plant Laboratory, Inc. According to the report, the grounds provide 0.06 percent phosphorous, 0.6 percent potassium and 2.28 percent nitrogen. And if tilled into the soil at a depth of 6 to 8 inches, the grounds will “substantially improve availabilities of phosphorous, potassium, magnesium and copper” improving the soil structure over both the long and short-term.
With more than 15,000 Starbucks coffee shops in 50 countries, just imagine how many coffee cups and coffee grounds go to waste? But since Starbucks first opened its doors in Seattle back in 1971, the company has initiated numerous programs to reduce its environmental impact.
In an effort to reduce landfill waste and its environmental impact from coffee cups, the company has numerous recycling goals in place. One is to encourage customers to bring in reusable cups when buying a beverage. Canadian and U.S. customers who bring in their own reusable mug or cup, get a 10 cent discount on their drink. Starbucks is also working towards its goal of serving 25 percent of its beverages made in the stores in reusable serveware or tumblers by 2015. According to the company website, Starbucks served more than 4 million more drinks in reusuable cups in 2009 compared to 2008.
Starbucks has also reduced its water consumption in 2009 by more than 4 percent and reduced electrical use by nearly 2 percent in company-owned stores.
Sustainable Enterprises offers some helpful tips and suggestions for anyone interested in using coffee grounds in the garden or compost pile.
Image courtesy of Ways2GoGreen