Coffee Grounds

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Education

While fresh coffee grounds are acidic, used coffee grounds are neutral. When used coffee grounds are rinsed, they have a near neutral pH of 6.5 and will not affect the acid levels of soil. 

Using coffee grounds as a fertiliser adds organic material to soil which improves drainage, water retention and aeration in the soil. Used coffee grounds also help microorganisms beneficial to plant growth thrive, as well as attract earthworms. To use coffee grounds as fertiliser, work the coffee grounds into the soil around your plants.

Composting coffee grounds helps add nitrogen to your compost pile. Used coffee filters can be composted as well. Coffee grounds are considered green compost material and will need to be balanced with the addition of some brown compost material.

Reuse

Use coffee grounds as fertiliser around plants or add to your compost pile or bin.

Recycle

Local cafés are welcome to deposit bags of used coffee grounds outside the front door of the WhEB (Whanganui Environment Base), where public can come and collect them.