We are proponents that if you brew your own coffee you will save a lot of money each year. We also like to add our coffee rinds to our kitchen compost. Thing is, when you dump just the grinds into the compost they end up covering the inside of the compost bin. We buy bleach free coffee filter packs so we can add the coffee filter pack directly to the compost bin. They work the same way as non-green filters – the only real difference is that they are brown in colour.