Rotline Question of the Week: Aerators? What are those for?

Too lazy to turn your compost bin? Is your bin not easily turned? Does your compost bin smell yucky? If you answered yes to any of these questions, a compost aerator could be the right tool for you!

Aeration (or the addition of air) is a very important ingredient in your compost pile. The microbes breaking down all the material in your compost pile need air to survive. These microbes are constantly using up the available air so by turning or aerating your bin, you are ensuring they will continue to thrive. When there is not enough air in your compost pile, decomposition turns anaerobic. In anaerobic decomposition, a different variety of microbe is breaking down material without air. The digesting microbe lets off sulfur which means the compost pile can start to smell!

Aerators come in two main styles. They either have wings or they look like a corkscrew. In the picture on the left, the green aerator is rotated into the compost pile to the desired depth. It is then pulled straight back out. The aerator below is pushed straight down. As it is lifted, the “wings” at the end of the aerator spread out, moving material and allowing for air flow.

This aeration method of pushing or rotating the aerator into the compost pile and then pulling it back out is less time consuming and requires less physical exertion than turning a compost pile with a pitchfork. Aerators do increase air flow in the pile but not to the extent that turning the entirety of the pile would. If you want to get compost quickly, turning the whole pile is the most successful method. If you do not want to spend the time, are looking for something less physical, or do not have compost bin that is easily turned, an aerator is a great alternative to increase air flow in your compost pile.

The Solana Center now has aerators for sale! The aerator we are selling is the green corkscrew model in the top and middle picture. They are on sale Tuesdays and Thursdays here at the Solana Center for only $20!