SuzanUsed coffee gdronus are fine for worms, in fact many suggest loading the worm bin with them. However I ran my own tests since I found discrepancies online whether or not the coffee gdronus were acidic or not. What we found on several different types of coffee is they are indeed acidic so as I suggest with everything, use in moderation. If a small amount from your daily coffee and have a couple cubic feet of bedding, you should be fine as long as you compensate with some pulverized once a week Just keep your eyes on the pH levels as the lime will help reduce the acid level while at the same time one does not want to go to the other extreme being alkaline. Your ideal pH level should be 6.5-7.0.Bruce
Margaret
SuzanUsed coffee gdronus are fine for worms, in fact many suggest loading the worm bin with them. However I ran my own tests since I found discrepancies online whether or not the coffee gdronus were acidic or not. What we found on several different types of coffee is they are indeed acidic so as I suggest with everything, use in moderation. If a small amount from your daily coffee and have a couple cubic feet of bedding, you should be fine as long as you compensate with some pulverized once a week Just keep your eyes on the pH levels as the lime will help reduce the acid level while at the same time one does not want to go to the other extreme being alkaline. Your ideal pH level should be 6.5-7.0.Bruce