The Compost Bucket is made of high quality galvanized iron and even has a high quality spray paint finish to avoid rust. This countertop trash can with lid has a large capacity of 1.3 gallons for kitchen composting needs. To avoid odors, a charcoal filter is placed in the lid of the bucket. Ventilation holes in the lid are there to circulate air for composting to happen more fully. Kitchen composting is a green lifestyle and an act to protect the environment.