Model # 100505396

Internet #202494199

Lewis Tools Compost Aerator

Lewis Tools

Compost Aerator

  • Made of steel with an anti-rust finish
  • Use to aerate and circulate compost
  • Easily mixes compost without additional tools
$3029 /each
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Product Overview

The decomposition occurring in the compost pile takes up all the available oxygen. Aeration is the replacement of oxygen to the center of the compost pile where it is lacking. Efficient decomposition can only occur if sufficient oxygen is present. Turning the compost pile is an effective means of adding oxygen and brings newly added material into contact with microbes. If the compost pile is not aerated, it may produce an odor symptomatic anaerobic decomposition. Operating Instructions 1. Thrust the Compost Aerator directly into the center of your compost pile. 2. As you pull up on the Compost Aerator, the folding wings will open and turn the compost. 3. Repeat until your compost is thoroughly mixed. Composting Tips 1) Turn your compost often (once or twice a week is ideal) to allow air to circulate. This will accelerate decomposition by providing microbes with necessary oxygen. 2) Locate your compost pile in a convenient location with good drainage, where it will receive about half a day of sun and remain moist and warm (between 110º–160º at the center of the pile). 3) Limit the size of your compost pile to no larger than 5 ft. x 5 ft. 4)Layer your compost pile on bare ground with organic materials (vegetable waste, lawn clippings, garden debris) on the bottom, fertilizers or starters in the middle, and top soil or active compost on the top.

  • Folding wings harpoon into the heart of the compost pile, opening when withdrawn
  • Mixes compost without use of a shovel or heavy lifting
  • Helps aerate and circulate compost, introducing oxygen needed for microbes and promoting faster decomposition
  • Extra durable, all steel construction
  • Anti-Rust Finish, All-Steel Construction
  • Guaranteed forever



Handle Length (in.)
Head Width (in.)
Product Depth (in.)
Product Height (in.)
Product Width (in.)
Tine length (in.)


Garden Center Tool Type
Cultivating Tool
Handle Material
Number of tines
Product Weight (lb.)

Warranty / Certifications

Manufacturer Warranty

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Customer Questions & Answers

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Customer Reviews

Compost Aerator is rated 3.5 out of 5 by 12.
Rated 5 out of 5 by from Just what I needed We have five big compost bins for the organic garden built by volunteers at a local Recovery Center. I could not be more pleased then I am with this terrific tool. It's all I need to keep these bins aerated and mixed.
Date published: 2017-07-06
Rated 5 out of 5 by from The aerator was very easy to use and does an excellent job of mixing the compost. This is a very ... The aerator was very easy to use and does an excellent job of mixing the compost. This is a very helpful tool.
Date published: 2017-07-04
Rated 1 out of 5 by from good for only one season The design of the folding wings is poor. After a season of use, when the rivet holding the wings gets worn, the flat part of the wings, which is parallel to the handle, begins to ride up on the round shaft and get stuck in a bind there. I loathe tools that are not built to last. This tool was obviously not tested under regular use over time. Note to tool designers: If the shaft of this tool were square, the wings would bump against the flat edge of the shaft, and they wouldn't ride up on the shaft.
Date published: 2016-03-14
Rated 1 out of 5 by from not so much Maybe my compost pile is thicker than yours, fuller than yours or tougher than yours. This is a sturdy thing for certain but 1) your compost pile better be light and fluffy if according to the directions you can "thrust" (with three lumberjacks) it right in the center of your pile and 2) the little "folding wings" don't perform. They get all tangled up in "stuff" and it was easier to "screw" this in to the pile and pull up then kind of dig around and unscrew in a different direction. Also, they're not a wide enough diameter when open. If you have a Bulb auger for your drill, use that if you need easy and automated. This didn't even disturb the sow bugs too much. Buying this product in store I can tell you it could and should be had for much less. Mine's going back. Good product idea for people that only use dry stuff and no scraps perhaps, but most folks with compost put eggs and banana peels and stringy things. It "might" be ok if you only had leaves.
Date published: 2012-05-20
Rated 5 out of 5 by from Compost Aerator "Turner" This product is very sturdily made which is doubly important for a tool that will be left in the weather, in or near your compost pile or bin. The handle is firmly attached to a solid steel rod (beware of hollow tube stock for this application). Steel paddles are firmly attached to the business end of the aerator so that when the rod is inserted into the compost, the paddles collapse against the rod, but when the rod is withdrawn, the paddles fan out, creating a jagged hole in the compost. The tool does not have to be twisted. Just push it straight in and pull it straight out at various locations around your pile. If the compost has not been aerated for some time, the user should not insert the tool very deep at first. Loosen the top layer and then proceed deeper as the top becomes easier to lift. Even a little loosening is very beneficial but the more the better. Though this product is made entirely of steel except for the handle covers, it is not overly heavy. Light-weight plastic aerators will soon break apart and don't deliver the value of this all-steel tool. The design of this tool has been developed over the ages, well tested, and deserves a spot near your compost bin. I give them as gifts to gardening friends.
Date published: 2016-06-10
Rated 2 out of 5 by from Ineffective ineffective in a compost pile that is compacted. Mixing arms don't swing out as they should when withdrawingthe aerator
Date published: 2016-06-09
Rated 3 out of 5 by from Overpriced for the limited function The flanges at the bottom that are supposed to fold out to lift compost from the bottom and thus mix the pile, rarely fold both. Usually only one folds out. Unfortunately, there are hardly any alternatives on the market.
Date published: 2013-11-05
Rated 5 out of 5 by from makes it easier to mix the compost compared to a garden fork Aerator is strong,but not too heavy.It really gets to the bottom of the pile easily.There is no more excuses that it's too hard to mix. I wish that it would be available in the store it was hard to find.
Date published: 2012-03-27
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