Compost bin

An improved compost bin for decomposing vegetable matter and the like, the improved compost bin being adapted to be supported on a substrate such as the earth in which a channel having a predetermined length has been cut and comprising:

• a substantially vertical bin wall including a plurality of similar panels and defining a substantially vertically disposed chamber which has an upper end and a lower end and which is used for receiving the vegetable matter and the like to be decomposed, each of the panels having a first side edge and a second side edge and being positioned, relative to the other panels, so that its first side edge is adjacent to the second side edge of one panel and so that the second side edge is adjacent to the first side edge of another panel;
• means for slidably interengaging the adjacent panel edges so that a panel may be selectively vertically moved, with respect to its adjacent panels, so as to permit access from outside the bin wall into the interior of the chamber;
• the bin wall being positioned on the substrate so that the channel underlies and is in communication with a portion of the lower end of the chamber and so that the remaining portion of the lower end of the chamber is adjacent to and in communication with the substrate on which the improved compost bin is supported, with the predetermined length of the channel being greater than the cross-sectional length of the portion of the lower end of the chamber so that air from without of the bin wall may pass through the channel and into the interior of the chamber;
• and a tunnel member disposed in the channel and having a perforated upwardly facing wall portion, with at least a part of the tunnel member underlying the portion of the lower end of the chamber.