Abstract: A composting device includes a container that has baffles and an aeration port. The container is supported on an axle, for easy rotation. An internal aeration tube has a screen, and protrudes from the aeration port into the interior of the container, reaching into the mass of the stored organic material. Ambient air enters through the aeration port into the hollow core of the aeration tube, and from there into the container through ventilation openings in the surface of the aeration tube. The aeration tube is further supported by the axle, which runs through two opposite ventilation openings of the aeration tube. A break up bar breaks up the organic material.