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Compost Tumbler
Turn Kitchen Scraps into Garden Gold with a Compost Tumbler
Stop throwing away free fertilizer. You buy soil amendments every spring, yet you likely toss nutrient-rich organic matter into the trash every day. Our Compost Tumbler collection changes that dynamic. These efficient systems accelerate decomposition, turning vegetable peels, coffee grounds, and yard clippings into dark, rich humus in weeks rather than months.
Browse our selection of Riverstone Industries tumblers below. We offer compact 42-gallon models for urban spaces and heavy-duty, geared compost barrel tumbler systems for larger families and serious gardeners.
Start Fast with the Genesis Dual-Chamber Compost Tumbler
Best For: Urban gardens, beginners, and compact backyards (42 Gallon).
Eliminate the mess of an open pile. The Riverstone GENESIS 42-Gallon Compost Tumbler keeps your process tidy and efficient.
This unit fits easily on a patio or against a fence. It features a smart dual-chamber design that allows for continuous composting. You fill one side while the other "cooks," so you never have to stop adding scraps.
- Accelerate Breakdown: Built-in churners inside the barrel break up clumps and mix oxygen into the pile every time you spin it.
- Keep Pests Out: The elevated design and sliding doors prevent rodents and raccoons from accessing your food waste.
- Built to Last: The UV-resistant plastic body sits on a powder-coated steel frame that resists rust and weathers the seasons.
- Support a Cause: A portion of proceeds from every Genesis sale supports Parkinson's Research.
Eliminate Heavy Lifting with the MAZE Geared Compost Barrel Tumbler
Best For: Large families, heavy loads, and ergonomic ease (48 & 65 Gallon).
Turning a fully loaded compost bin requires strength, but the MAZE series solves this physical challenge. These units feature a unique gear and ratchet system.
This mechanism multiplies your leverage, allowing you to rotate a heavy compost barrel tumbler with minimal effort.
Why the MAZE series is the top tier:
- Maximum Airflow: Adjustable vents let you control the oxygen intake, which is critical for generating the heat needed for rapid breakdown.
- Ergonomic Collection: The elevated frame allows a specialized compost cart (included in some kits) to slide directly underneath. You dump finished compost right into the cart—no shoveling required.
- Zinc-Coated Strength: The metal frame uses zinc-coated steel to withstand humidity and rain without corroding.
Choose the MAZE compost tumbler for you:
48-Gallon Geared: Perfect for tight spaces. It includes the geared handle and locking ratchet to prevent backward rotation.
65-Gallon Original: A massive capacity unit for households with significant yard waste and kitchen scraps.
65-Gallon Easy Turn Kit: The ultimate setup. It combines the massive 65-gallon barrel with the heavy-duty 3-gear handle system for the easiest turning experience possible.
Get Easy Compost with a Compost Barrel Tumbler
- Speed Up Decomposition: Tumbling aerates the mix instantly, heating the pile and breaking down matter weeks faster than a static heap.
- Protect Your Waste: An enclosed compost barrel tumbler stops local wildlife from scattering your garbage across the yard.
- Save Your Back: The elevated design means you load and unload at waist height, eliminating the need to bend over with a pitchfork.
- Control Odors: Sealed barrels with proper ventilation keep smells contained and prevent the pile from going anaerobic (rotting).
- Reduce Landfill Waste: Divert hundreds of pounds of food scraps from the trash stream every year and return those nutrients to your soil.
Frequently Asked Questions
What can I put in a compost tumbler?
Mix nitrogen-rich "greens" (fruit/veggie scraps, coffee grounds) with carbon-rich "browns" (dried leaves, paper). Avoid meat, dairy, and oils.
How long does it take to make compost?
With a balanced mix and frequent turning, a compost barrel tumbler produces finished soil in 4 to 8 weeks, much faster than open piles.
Why do I need two chambers?
Dual chambers allow continuous use. You fill one side while the other side matures, ensuring you always have a place for fresh scraps.
Does a compost tumbler smell?
Not if managed correctly. Odor usually means the mix is too wet. Add dry leaves or cardboard (browns) and tumble it to restore the balance.
Is the plastic BPA-free?
Yes. Riverstone Industries uses BPA-free, UV-inhibited plastic for their tumblers, ensuring no harmful chemicals leach into your garden soil.