According to Oregon State University Extension Service, "Coffee grounds are a great addition to the garden and compost pile. It helps to recycle this great organic resource and reduces the amount of organics going to the landfill! Some information about coffee grounds: Coffee grounds are about 2% nitrogen by volume. Grounds are not acidic; the acid in coffee is water-soluble so the acid is mostly in the coffee. Coffee grounds are close to pH neutral (between 6.5 - 6.8 pH). Coffee grounds improve soil tilth or structure."
We welcome volunteer help of any amount for initiatives like this and the Food Scrap Drop Off Site offered every Saturday by NYC Compost hosted by Big Reuse. Send an email to firstname.lastname@example.org and the RIGC Board Secretary will forward your contact along.