We’ve got great news for all our Earth-conscious coffee drinkers. Researchers from Oregon State University have discovered that composted spent coffee grounds are an awesome fertilizer! Lucky for us, we personally use our spent Live Free Coffee grounds in our compost pile which we use to nourish our raised bed gardens every year.
Composted grounds are rich in nitrogen, which provides the fuel for bacteria to turn organic matter into compost and provide nourishment to growing plants. In fact, it provides a nitrogen boost as rich as manure (a common compost additive), with the added benefit of avoiding the common pathogen concerns that come with using fecal matter.
In a world where we are destroying our nutrient-rich topsoil at an alarming rate, nitrogen rich compost is pure black gold.
Just be sure you add it to your compost and NOT directly to your plants. Research has found that uncomposted grounds resulted poor germination and stunted plant growth. And of course, what goes in must come out. Those grounds will become the soil you grow your fruits and vegetables in, so make sure so make sure that your coffee is toxin-free and ethically sourced.
Drink coffee, compost and reduce waste, nourish the soil, save the planet. Sounds like a damn good plan to us!