Yeah, we know, Keurig coffee makers are evil. Wasteful. An abomination. But if you can get around the non-recyclable pod problem, it can be pretty nifty. Enter these little filters for any reusable K-Cup replacement insert. They solve the problem of dregs in your cup from mesh filters, they better approximate the pressure and flow of a K-cup and they are compostable, along with your coffee grounds. Now you can vanquish evil first thing in the morning.