Coffee grounds boost earthworms in compost, revolutionizing waste reduction.
Vermicomposting with coffee grounds is a good way to recycle waste. Scientists studied how different amounts of coffee grounds affect earthworms. They found that the amount of coffee grounds didn't affect the earthworms' weight. The earthworms' weight also wasn't related to the pH or nitrogen levels in the soil. More research is needed to figure out the best amount of coffee grounds for more earthworms and how pH and nitrogen levels affect them.