The nicest looking kitchen compost collector we've see, the Eco Crock features a stoneware container that holds an inner plastic bucket. The plastic bucket lifts out for transporting food scraps to the waste can or compost heap. A charcoal filter is nestled inside the vented lid to eliminate odors. To clean, simply rinse the plastic inner bucket in hot water. The capacicty is 3.3 liters, about three-quarters of a gallon. The Eco Crock comes with two filters, additional filters are just $5.36 each.