The best outdoor composting tumblers make turning your kitchen scraps into nutrient-rich compost a breeze. We researched dozens of models, evaluating each on durability, capacity, ease of use, and value.
Our top pick, the Dual Chamber Compost Tumbler, has a large capacity, is made of sturdy plastic, and has a height-adjustable latch to keep your compost securely inside.
Here are the best outdoor composting tumblers.
Best Outdoor Composting Tumblers: Editor Recommended
Our Editor’s Best Outdoor Composting Tumblers Reviews
- GROW A HAPPIER GARDEN – Do you look at other’s gardens with envy? Give your plants the nutrient-dense fertilizer they crave, and watch your garden bloom like never before! With Miracle-Gro’s dual chamber, heavy-duty tumbling composter you get 2 compartments for faster and more efficient composting all year round.
- KEEP THE NUTRIENTS COMING – Achieve your gardening goals with a steady supply of ready-to-use compost! This 2-chamber compost tumbler allows you to add compost ingredients to 1 side, while waiting for the other side to cure. And with internal mixing bars that speed up the decomposition process, you can expect rich, fertile compost in just 4-6 weeks!
- NO MORE HEAVY LIFTING – Miracle-Gro is here to make composting easy for beginners and seasoned green thumbs alike! Our efficient tumbler system is the simple way to get perfectly cooked compost without having to dig, turn, and mix by hand. All you have to do is open the easy-sliding door, add your scraps, and turn the handle 5-6 times every few days.
- A BRAND YOU TRUST – With the help of Miracle-Gro, both you and your garden will thrive. As America’s most trusted garden supply brand, we guarantee you’ll be satisfied with our products. Once you start using the compost generated by your new dual-chamber tumbling composter, you’ll enjoy bigger harvests, healthier plants, and your most beautiful gardens yet!
- Achieve your garden goals with a pair of Scotts multi-purpose gardening gloves! Each pair is latex-free, water-resistant, and features a no-slip grip, perfect for both indoor and outdoor projects. Grow your green thumb with Scotts and Miracle-Gro!
- YOUR RECIPE FOR PLENTIFUL PLANTS – Do you dream of a huge harvest or a front yard full of vibrant flowers? Achieve all of your garden goals with Miracle-Gro’s large 2x - 27.7gal (105L) dual chamber rolling compost tumbler! It’ll help you produce a constant and abundant flow of the coveted “black gold.” Give your plants the nutrient-dense fertilizer they crave, and watch your garden bloom like never before!
- DOUBLE-DUTY, CONSTANT COMPOST – Serious gardeners need an endless supply of compost to keep their gardens looking and producing their best. Miracle-Gro’s turning garden composter does just that with its dual chamber design and high volume capacity. Add compost ingredients to 1 side, while letting the other side cure, and you’ll never get caught without compost again!
- FAST AND EASY – Stop struggling with that clunky, cumbersome, difficult to use outdoor compost bin! Miracle-Gro’s rotating compost bin is easy to use for everyone. Our efficient tumbler system is simple to load and unload, while creating perfectly cooked compost without having to dig, turn, or mix by hand. It’s also designed to speed up decomposition, yielding rich, fertile compost in just 4-6 weeks!
- LONG LASTING DEPENDABILITY – With a name like Miracle-Gro, you know you’re getting nothing but the best quality. This all seasons compost bin tumbler is crafted with sturdy side-locking mechanisms, a strong galvanized steel base, and tight seals to keep out unwanted pests. Plus, the BPA-free, food grade, UV-protected plastic ensures faster and more efficient composting all year round, while never leaching harmful toxins.
- FREE BONUS GIFT – Achieve your garden goals with a FREE pair of Scotts multi-purpose gardening gloves! Each pair is latex-free, water-resistant, and features a no-slip grip, perfect for both indoor and outdoor projects. Grow your green thumb with Scotts and Miracle-Gro!
- 【Sturdy Construction】--This large tumbling composter makes recycling kitchen scraps a breeze. This premium BPA free organic compost bin is made from PP material and powder-coated steel construction, interlocking panels add sturdiness, sturdy enough to hold the device which does not rock or attempt to turn over even when spinning, stable enough not to fall over in even 40 mph winds as long as there is compost in it
- 【Practical Dual Chamber】--The black outdoor compost tumbler bin has 2 separate chambers that allow you can use the compost more frequently and efficiently while a single barrel composter, you have to wait to add new materials until the original materials have properly decomposed. Also you can combine it with a dry source to avoid getting mushy compost
- 【Convenience Aeration System】--The strong compost barrel features aeration holes as well as deep fins to break up clumps inside the chamber and mix lots of oxygen into the compost, please make sure that you have all the tabs in the holes as well or the panel won't make a flat seam. Easy to use as the openings are divided, just slide the door open to add the compost material and slide shut
- 【Rotatable & Easy to Assemble】--This rotating waste bin is relatively easy to put together - half and hour or less, manual with installation steps in every package, a pair of gloves and screwdriver included. Center divider is made with angled edges with offsets, please make sure the edge fits into the slots of the panels when assembling. Tip: take advantage of the self locking nuts and thread the nuts on until they touch the plastic, then you can turn the screws without having to hold the nut
- 【Speedy Process & Space-saving】--Black color compost container can help absorb sunlight, allow for warm temperatures and faster composting. Compact enough for the outdoor space, looks nice in the yard and doesn't stink as long as you keep the green/brown ratio correct. Makes composting in urban areas super easy! Maximum capacity of 43 gallon and assembled size of 28. 5" X 25" X 37"
- Constructed from rugged and durable polypropylene Bin with powder coated Steel frame to provide years of service while maximizing capacity to decompose
- Features air vents or aeration holes with two sliding doors allow user to provide the desirable amount of oxygen going inside the compost for better and quick results
- Designed with dual chambers to make the composting process simple and more effective while providing best quality results. It treats soil waste to decompose in an ENVIRONMENTAL way. Compost waste in just a couple of weeks with proper maintenance by turning 5-6 times every couple of days and get results in 2-4 weeks.
- First panel for preserving mature compost while the 2nd chamber for new waste and scraps. Two separate panels will allow proper rotation of composting process to produce enriched compost.
- Its space-saving and space-efficient design makes it a perfect compost/tumbler in any given space. Maximum capacity of 42 gallons and assembled size of 28. 50" X 26" X 36. 80"
- DUAL CHAMBER COMPOST BIN - Dual chamber composter allow for continuous composting. Fill up one while the other nears the end of the compost process, the rich black stuff ready to use. Once empty, that becomes the one to fill up while the other completes the cycle.
- AERATION SYSTEM- Aerated internal bar mixes compost & allows needed airflow.Black, double-wall panels absorb and retain heat.Perfectly suited for your garden and for people not wanting to mix the organic waste in their traditional compost bin.
- INGENIOUS TUMBLER DESIGN - Turns on axis for easy and balanced rotation.Easy slide doors will help keep track of each batch,the length of 1 door is 10.23” and the width is 6.1
- CONVENIENT LOADING HEIGHT - Enough height to put a cart under this compost tumbler.Easy to turn barrel, waste mixed easily, fast batch composting.
- STURDY POWDER-COATED STEEL FRAME - Powder-coated steel frame provides a sturdy base for the large compost bin.Galvanized steel feet prevent rusting and deterioration.
- Two 50-gallon barrels allow for continuous composting; Cubic Foot Capacity: 6.7 ft3 (0,18 m3)
- Aerated internal Bar mixes compost and allows needed airflow
- Ingenious tumbler design - turns on axis for easy and balanced rotation
- Load one barrel while the other barrel processes - includes Processing indicator
- Convenient loading Height; long-lasting strength and durability; how to compost guide included
- 【Double Chamber】The 2-chamber design and batch composting are the most effective way to produce high-quality compost; while “cooking” on one side and adding fresh materials to the other side, the continuous exchange of both sides will produce an uninterrupted rich and healthy flow of compost
- 【Aeration System Design】 The composting Bin is equipped with aeration holes, which can make the air fully circulate and will not cause an explosion due to excessive internal pressure. The surface is equipped with deep fins, which can better break the organic waste without making it agglomerate, which is conducive to the full fermentation of oxygen
- 【Sturdy & Durable】This BBBuy Tumbling Compost Bin is made of galvanized steel and high-quality PP plastic. It has the characteristics of corrosion resistance, degradation resistance, waterproof and sunproof, sturdiness and durability, and long service life
- 【User Friendly】The composting drum is exquisitely designed and you only need to turn it gently to use it. There is no need to dig, rotate, or stir by hand, just fill it up with garden clippings and kitchen scraps, slide the door closed, and give it a spin every few days. After 4-6 weeks, the desired compost can be produced
- 【Specification】Overall Dimensions: 28.5”L x 25”W x 37”H; Each Door Dimension: 8.9”L x 5.3” W; Maximum Capacity: up to 43 Gallons
- 🍃【Dual Chamber】 This tumbling composter features two separate sides, which allow the first side to finish while leaving another side continue to add fresh scraps/clippings, creates an uninterrupted flow of rich, healthy compost. 43 Gallon capacity, 2 chambers hold quite a bit.
- 🍃【Excellent Aeration System】Designed with aeration holes and deep fins, allows needed airflow and mixes a lot of oxygen into the compost, break up clumps inside quickly. Dark color help promote the composting process too.
- 🍃【Rotatable Composter】The tumbling design makes mixing efficient. When full, rotating is easy and the frame stays solid. The large openings and removable door make it easy to add scraps/waste and remove finished compost. Comes with a Pair of Gloves to protect your hands and keep clean.
- 🍃【Durable Construction】The main body of this composting tumbler is made of durable PP, which is weather resistant and won’t degrade under sunlight. The strong metal frame with high-grade coating is corrosion resistant.
- 🍃【Easy to Use】 Great for beginners, very easy to use, just close the door， turn it 5-6 times every 2-3 days. In hot summer condition , the compost can finish in as little as 2 weeks! ★★Assemble Required.
- 🌱Efficient Compost：Easy to rotate and the Air Holes make the composter have the best air circulation,give you an effective composting.
- 🌱Better to Use: Dual Compartment,you can use 1 side firstly then another one.More choices,more health.43 Gallon(2X21.5 Gal)
- 🌱More Easily: The compost tumbler design just need you to rotate it slightly,without having to dig, turn, and mix by hand.Only need to open the sliding door and put the scraps into it and rotate it 6-7 times every few days.
- 🌱Super High Quality: Made of PP & BPA-Free; Steel Frame & Very Sturdy. Its maximum load bearing is 352Lb.The compost barrel is made of ‘"Modified PP " which has improved its Cold-Resistance.
- 🌱Reliable After-Sales Service: It is always our tenet to give our customers the most professional compost bins and make customer satisfied with us. If you have any problems,pls feel free to contact us,we are always here to help you.
- 【Durable Structure】Made from PP material and steel construction, the compost bin is durable and can be placed outdoors and in the garden
- 【Dual Chamber Design】Dual chambers allow for simultaneous production of batches of compost at different stages. Fill one side and solidify the other side, so your kitchen and yard waste can be effectively converted into fertile soil for improved composting
- 【Excellent Aeration】This compost barrel has vents and deep fins, which not only makes it look better, but also breaks down indoor agglomerations and mixes a lot of oxygen into the compost
- 【Easy to Use】The compost tumbler design just need you to rotate it gently without digging, turning and mixing hands. Just open the sliding door, put the scraps in, and rotate 5-6 times every few days
- 【Space-saving】The maximum capacity is 43 gallons and the assembly size is 28. 5" X 25" X 37"
Best Outdoor Composting Tumblers Buying Guide
Before choosing the best outdoor composting tumbler you should consider the following options:
1. Size and Capacity: How much waste you’ll produce will affect the size of the tumbler you buy.
Think about how much you expect to produce, and then choose accordingly. Although some tumblers have a smaller capacity than others, it’s not a huge deal as you can empty the container more often.
You can also adjust your organic waste disposal habits to suit the size of the tumbler.
2. Durability: The material the tumbler is made from will have an impact on its durability.
Plastic and steel are the most common materials used for these appliances. Steel is stronger than plastic, but it is heavier and more expensive.
If you’re going to move the tumbler around a lot, it’s a good idea to get one made from plastic.
3. Ease of Use: The design of your tumbler will affect how easily you can use it.
For example, if it has a lid that you need to lift up to pour out the compost, it will get stuck a lot.
This can be frustrating, especially if you have kids helping to empty the tumbler.
If it has a handle, it will be easier to move, but it will also be heavier.
4. Price: The price of a tumbler will vary depending on the features it offers, but also on its material.
Steel will cost more than plastic, but it’s more durable, and you can expect a longer lifespan.
What else you should know about the best outdoor composting tumblers
1. What are the best materials to use in a compost tumbler?
The best materials to use in a compost tumbler are kitchen scraps, garden waste, and manure.
2. What is the ideal size for a compost tumbler?
Most compost tumblers have a capacity of around 30 to 40 gallons.
3. What is the best way to aerate a compost tumbler?
The best way to aerate a compost tumbler is to turn it regularly so that air can reach all the material inside.
4. How often should a compost tumbler be rotated?
A compost tumbler should be rotated every 2-3 days.
5. What are the benefits of using a compost tumbler?
There are many benefits of using a compost tumbler, including the fact that they help to speed up the composting process, they make it easier to control the temperature and moisture levels of the compost, and they can help to reduce bad odors.
On the market, there are numerous best outdoor composting tumblers. Hopefully, the list of the top ten best outdoor composting tumblers will save you time researching and deciding on the best one for you.