Cold composting, sometimes called passive composting does work. It takes a little longer than hot composting, but if your compost bin or compost pile is full, cold composting is another way to recycle garden waste and table scraps. The same concepts apply, using a 3:1 ratio of browns to greens. Browns include leaves, shredded cardboard and newspaper. Greens include table scraps, grass clippings, coffee grounds and eggshells. Avoid adding meat or dairy, diseased plants or weed seeds (it won’t get hot enough to get rid of the seeds). Expect cold composting to take longer that “hot” composting. The temperatures aren’t there to accelerate the process of breaking down the raw materials. Composting doesn’t have to be complicated.