Curious what folks like to do with spent coffee grounds / espresso pucks / stale beans. Personally have tried to use as fertilizer with limited success, used as a substrate for growing oyster mushrooms, and in cooking (brown bread made with some stale espresso grind really helps the flavor).
Like most commenters, I throw them with the filters on the compost pile. But recently I had a dog in the neighborhood pulling out plants in my front garden, and shitting in it. Spreading some of the coffee grounds seemed very effective against that too. I guess the dog doesn’t like the smell. So it;'s a win-win because the plants profit from it directly too :D
I toss them directly in my raspberry patch, next to my back deck. They love that shit, and enjoy slightly acidic soil anyway.
Apparently if you do compost with worms, they love the stuff.
I have made a coffee vodka. Saved the grounds up for days, only to realise you don’t need much to make it! Left it for much longer than the recipe said, but that was because I wanted a stronger coffee taste.
I use them with soap to wash my hands when I’m working on cars or anything greasy. Really helps to scrub away the nasty stuff.
