10 Best Under Sink Compost Bins for 2026 (No More Odors)
You’d be surprised to learn that most kitchen compost bins aren’t actually designed for under-sink installation, despite manufacturers marketing them that way. The enclosed space creates unique challenges—limited airflow, higher humidity, and restricted access that can quickly turn your eco-friendly efforts into a smelly disaster. But here’s the thing: the right under-sink compost bin can transform that awkward cabinet space into an odor-free composting station. Let’s explore what separates the winners from the failures.
Table of Contents
Quick Overview
- Under sink compost bins range from compact 0.75-gallon models to spacious 7-liter options for different household sizes.
- Odor control features include charcoal filters, airtight lids, sealed designs, and antimicrobial materials that prevent smell and bacteria growth.
- Installation methods include door-mounting, wall-mounting, under-sink placement, and freestanding designs for various kitchen configurations.
- Top-rated bins earn 4.5-4.6 stars from thousands of reviews, with some models ranking #1 in their category.
- Easy maintenance features like smooth interiors, removable lids, dishwasher-safe materials, and bag-securing rings simplify daily use.
| Utopia Kitchen Indoor Compost Bin with Filter |  | Best Overall | Capacity: 1.3 gallon | Material: Stainless steel | Mounting Options: Countertop or under-sink | VIEW LATEST PRICE | Read Our Analysis |
| Tiyafuro 2.4 Gallon Kitchen Compost Bin with Lid |  | Best Versatility | Capacity: 2.4 gallons | Material: ABS plastic / Polypropylene | Mounting Options: Wall-mount, hanging, countertop, under-sink | VIEW LATEST PRICE | Read Our Analysis |
| OXO Good Grips Easy-Clean Compost Bin Charcoal – 0.75 GAL |  | Most Compact | Capacity: 0.75 gallon | Material: Plastic | Mounting Options: Countertop | VIEW LATEST PRICE | Read Our Analysis |
| EKO Kitchen Compost Bin 7L Stainless Steel |  | Premium Choice | Capacity: 7L / 1.85 gallon | Material: Stainless steel | Mounting Options: Wall-mount, hanging, countertop | VIEW LATEST PRICE | Read Our Analysis |
| LALASTAR Kitchen Compost Bin Hanging with Lid |  | Budget-Friendly Pick | Capacity: 1.8 gallon | Material: Plastic | Mounting Options: Wall-mount, hanging, under-sink | VIEW LATEST PRICE | Read Our Analysis |
| Stonespace 3.2 Gallon Kitchen Compost Bin (Blue) |  | Largest Capacity | Capacity: 3.2 gallon / 12L | Material: Plastic | Mounting Options: Wall-mount or under-sink | VIEW LATEST PRICE | Read Our Analysis |
| Kitchen Waste Bin with Hooks (Green 3L) |  | Most Affordable | Capacity: 3L | Material: ABS plastic | Mounting Options: Wall-mount, hanging, countertop, under-sink | VIEW LATEST PRICE | Read Our Analysis |
| 2.6 Gallon Kitchen Compost Bin with Lid |  | Editor’s Choice | Capacity: 2.6 gallon | Material: ABS plastic | Mounting Options: Wall-mount, hanging, countertop, under-sink | VIEW LATEST PRICE | Read Our Analysis |
| LALASTAR Countertop Compost Bin with Lid 5L |  | Space-Saving Design | Capacity: 1.3 gallon / 5L | Material: Plastic | Mounting Options: Wall-mount, hanging, under-sink | VIEW LATEST PRICE | Read Our Analysis |
| 1.9 Gallon Kitchen Compost Bin with Lid |  | Most Innovative | Capacity: 1.9 gallon | Material: Plastic (implied) | Mounting Options: Wall-mount, hanging, countertop, under-sink | VIEW LATEST PRICE | Read Our Analysis |
More Details on Our Top Picks
Utopia Kitchen Indoor Compost Bin with Filter
If you’re looking for a compact composting solution that won’t announce itself with unpleasant odors, the Utopia Kitchen Indoor Compost Bin deserves your attention. This 1.3-gallon stainless steel bin features a charcoal filter that effectively traps odors while you accumulate scraps. Its cylindrical design measures 8.4L x 7W x 11H inches, fitting comfortably on countertops or under sinks.
The durable construction withstands daily use, and you’ll appreciate the straightforward cleaning process—just wash thoroughly after emptying. At 2 pounds, it’s lightweight yet sturdy. With nearly 20,000 customer reviews averaging 4.5 stars and ranking #1 in its category, it’s proven reliable for odor-free composting.
- Capacity:1.3 gallon
- Material:Stainless steel
- Mounting Options:Countertop or under-sink
- Odor Control:Charcoal filter
- Dimensions:8.4L x 7W x 11H inches
- Shape:Cylindrical
- Additional Feature:Charcoal filter included
- Additional Feature:Cylindrical stainless steel design
- Additional Feature:#1 Best Seller ranking
Tiyafuro 2.4 Gallon Kitchen Compost Bin with Lid
The Tiyafuro 2.4 Gallon Kitchen Compost Bin is best for renters and small-space dwellers who need flexible mounting options without permanent installation. You’ll hang it on cabinet doors up to 0.95 inches thick using the included hook and adhesive mounts. The 2.4-gallon ABS plastic bin measures 10.2″ × 6.3″ × 11.6″ and weighs just 1.73 pounds.
Its odor-preventing lid keeps your kitchen fresh while you collect scraps. You’ll appreciate the smooth finish that cleans easily with soap and water, leaving no crevices for grime. It includes 20 trash bags and works equally well on countertops or under sinks.
- Capacity:2.4 gallons
- Material:ABS plastic / Polypropylene
- Mounting Options:Wall-mount, hanging, countertop, under-sink
- Odor Control:Lid prevents odor escape
- Dimensions:10.2L x 6.3W x 11.6H inches
- Shape:Rectangular
- Additional Feature:Includes 20 trash bags
- Additional Feature:Smooth finish prevents buildup
- Additional Feature:Compatible with grocery bags
OXO Good Grips Easy-Clean Compost Bin Charcoal – 0.75 GAL
Compact kitchens and limited counter space call for the OXO Good Grips Easy-Clean Compost Bin, a 0.75-gallon solution that’s perfect for apartment dwellers and minimalists who compost daily. You’ll appreciate the flip-up lid that opens with one hand and secures down to trap odors between trips outside. The smooth interior walls prevent food buildup, while the contoured bottom guarantees complete emptying without residue.
Its sturdy rotating handle makes transporting scraps effortless, and the removable lid simplifies cleaning. At just 1.19 pounds and 7.5 inches tall, it won’t overwhelm your counter. With 4.6 stars from 17,769 reviews, it’s ranked #3 in indoor compost bins.
- Capacity:0.75 gallon
- Material:Plastic
- Mounting Options:Countertop
- Odor Control:Flip-up lid locks in odors
- Dimensions:6.6L x 6.4W x 7.5H inches
- Shape:Cylindrical
- Additional Feature:One-hand flip-up lid
- Additional Feature:Sturdy rotating handle
- Additional Feature:Contoured bottom design
EKO Kitchen Compost Bin 7L Stainless Steel
Looking for a compost solution that doesn’t sacrifice your limited counter space? The EKO Kitchen Compost Bin offers versatile placement options—mount it on walls, hang it over cabinet doors, or tuck it under your sink. This 7-liter stainless steel bin resists fingerprints and corrosion while maintaining a sleek appearance.
Its precision-engineered swing lid keeps odors contained, and the removable inner liner simplifies bag changes. You’ll appreciate the sturdy carrying handle for easy transport to your outdoor compost pile. The detachable design makes cleaning effortless, helping you maintain a hygienic kitchen while transforming scraps into nutrient-rich compost.
- Capacity:7L / 1.85 gallon
- Material:Stainless steel
- Mounting Options:Wall-mount, hanging, countertop
- Odor Control:Swing lid maintains hygiene, keeps odors at bay
- Dimensions:Not specified
- Shape:Not specified
- Additional Feature:2-in-1 trash/compost bin
- Additional Feature:Fingerprint-resistant stainless steel
- Additional Feature:Precision-engineered swing lid
LALASTAR Kitchen Compost Bin Hanging with Lid
If you need a versatile composting solution that adapts to your available space, the LALASTAR Kitchen Compost Bin delivers with its three-way installation system. You can wall-mount it with adhesive pads or screws, hang it on cabinet doors up to 0.86 inches thick, or tuck it under your sink. The 1.8-gallon blue plastic bin features a precisely-fit lid that blocks odors and keeps fruit flies out.
Its retention ring prevents garbage bags from slipping down during use. You’ll appreciate that it’s dishwasher safe and BPA-free, making cleanup effortless. The compact 9.8L x 7.7W x 8.5H inch design saves space throughout your kitchen, bathroom, or RV.
- Capacity:1.8 gallon
- Material:Plastic
- Mounting Options:Wall-mount, hanging, under-sink
- Odor Control:Precisely-fit lid blocks odors
- Dimensions:9.8L x 7.7W x 8.5H inches
- Shape:Not specified
- Additional Feature:Dishwasher safe plastic
- Additional Feature:BPA-free construction
- Additional Feature:Retention ring included
Stonespace 3.2 Gallon Kitchen Compost Bin (Blue)
The Stonespace 3.2 Gallon Kitchen Compost Bin stands out as the best choice for apartment dwellers and homeowners who want a no-fuss composting solution without dealing with fruit flies or unpleasant odors. You’ll appreciate its sealed design that guarantees the absence of the need for charcoal filters while keeping pests away.
At 6.5 x 10 x 11.5 inches, this 3.2-gallon bin fits perfectly under your sink or mounts on the wall. The sturdy, non-toxic plastic construction certifies durability, and you can easily clean it with soap and water. With 1,707 customer reviews averaging 4.6 stars, it’s proven reliable for kitchen, bathroom, and RV use.
- Capacity:3.2 gallon / 12L
- Material:Plastic
- Mounting Options:Wall-mount or under-sink
- Odor Control:Sealed lid, no filter needed
- Dimensions:6.5L x 10W x 11.5H inches
- Shape:Rectangular
- Additional Feature:No charcoal filter needed
- Additional Feature:Non-toxic plastic construction
- Additional Feature:12L superior capacity
Kitchen Waste Bin with Hooks (Green 3L)
This 3-liter hanging waste bin maximizes vertical storage in space-conscious households while keeping composting materials discreetly tucked away. The durable ABS plastic construction mounts easily on cabinets up to 0.8 inches thick using the included hook and adhesive accessories. The lid effectively contains odors while preventing curious pets and children from accessing contents.
The compact design works equally well hanging under sinks or sitting on countertops, and you can even line it with reusable grocery bags for easy disposal. It’s versatile enough for kitchens, bathrooms, RVs, and laundry rooms where space is limited.
- Capacity:3L
- Material:ABS plastic
- Mounting Options:Wall-mount, hanging, countertop, under-sink
- Odor Control:Lid prevents odors
- Dimensions:Not specified
- Shape:Not specified
- Additional Feature:Prevents child/pet access
- Additional Feature:Reusable grocery bag compatible
- Additional Feature:Durable ABS construction
2.6 Gallon Kitchen Compost Bin with Lid
This 2.6-gallon kitchen compost bin combines compact design with practical functionality for efficient food waste management. The tool-free installation uses an included hook or adhesive mount, fitting cabinet doors under one inch thick or any clean vertical surface. The dual lid-opening system—flip up or slide down—accommodates your preference while effectively containing odors without carbon filters, eliminating fruit flies and unpleasant smells even after storing scraps for days.
Made from durable ABS plastic, it’s lightweight and wipes clean effortlessly. The retaining ring secures garbage bags to prevent messy slips, making it function perfectly in kitchens, bathrooms, or offices.
- Capacity:2.6 gallon
- Material:ABS plastic
- Mounting Options:Wall-mount, hanging, countertop, under-sink
- Odor Control:Lidded design prevents odor dispersion
- Dimensions:10.24L x 6.3W x 9.45H inches
- Shape:Rectangular (implied)
- Additional Feature:Dual lid-opening methods
- Additional Feature:Tool-free installation
- Additional Feature:Reduces back pain
LALASTAR Countertop Compost Bin with Lid 5L
Versatility defines the LALASTAR Countertop Compost Bin, making it the best choice for renters and homeowners who need flexible installation options. You’ll mount it on walls with adhesive tape or hang it over cabinet doors without damaging surfaces. The 5-liter capacity handles your daily kitchen scraps while blocking odors and preventing fruit flies.
Its compact 9.6″ x 7.5″ x 5.7″ design fits under sinks, in RVs, or anywhere you need compost storage. You’ll appreciate the BPA-free, dishwasher-safe construction that resists stains and odors. At 15.5 ounces, it’s lightweight enough to relocate as your needs change.
- Capacity:1.3 gallon / 5L
- Material:Plastic
- Mounting Options:Wall-mount, hanging, under-sink
- Odor Control:Odor-blocking lid
- Dimensions:9.6L x 7.5W x 5.7H inches
- Shape:Not specified
- Additional Feature:Stain and odor resistant
- Additional Feature:Ultra-compact 5L size
- Additional Feature:Dishwasher safe design
1.9 Gallon Kitchen Compost Bin with Lid
For renters and homeowners who can’t commit to permanent fixtures, this 1.9-gallon compost bin delivers flexible installation without drilling holes or damaging surfaces. The semi-automatic slide cover opens with minimal effort while sealing odors, musty smells, and insects inside. The 10.2-inch wide opening reduces spillage during disposal, and you won’t need to bend down for cleaning—simply hang it using the included wall hook or adhesive patch.
At 10.2″ x 5.9″ x 8.26″, it fits inside or outside cabinet doors, maximizing your under-sink space. Installation takes minutes: attach the hook, slide it onto the bin, and hang wherever needed.
- Capacity:1.9 gallon
- Material:Plastic (implied)
- Mounting Options:Wall-mount, hanging, countertop, under-sink
- Odor Control:Sealed lid blocks odors
- Dimensions:10.2L x 5.9W x 8.26H inches
- Shape:Rectangular (implied)
- Additional Feature:Semi-automatic slide cover
- Additional Feature:Wide 10.2-inch opening
- Additional Feature:No bending required
Factors to Consider When Choosing Under Sink Compost Bins
When selecting an under sink compost bin, you’ll need to evaluate several key features to find the right match for your kitchen. The bin’s size and capacity should fit your available cabinet space while accommodating your household’s food waste volume. You’ll also want to assess installation requirements, odor control mechanisms, material durability, and how easily you can access the bin through its lid design.
Size and Capacity Options
Most under-sink compost bins fall within the 1 to 3-gallon range, striking a practical balance between convenient daily use and manageable trips to your outdoor compost pile. If you’re working with a small kitchen, a compact 1-gallon bin saves valuable space. Larger households generating more scraps should consider 2-3 gallon models for extended capacity.
Before purchasing, measure your under-sink clearance carefully. You’ll need to account for plumbing fixtures and any items you’re storing underneath. Taller, narrower bins work best in shallow cabinets, while wider, shorter designs suit deeper spaces. The right size depends on both your available cabinet dimensions and how much compostable waste your household produces daily.
Installation and Mounting Methods
Your choice of mounting method directly impacts how efficiently you’ll use your under-sink compost bin. Wall-mounting with adhesive hooks or screws provides the most secure, space-saving setup, keeping your bin firmly in place while maximizing floor space. If you’re renting or prefer flexibility, door-mounted options with adjustable hooks work excellently, accommodating various door thicknesses and allowing easy removal when needed.
Freestanding bins offer maximum flexibility, letting you reposition them as your kitchen layout changes—under sinks, on countertops, or in pantries without any installation. Consider bins with included mounting accessories like hooks and adhesive strips to simplify setup considerably, and note that many homeowners combine mounting methods, using wall-mounted bins for daily scraps while keeping freestanding containers as backup storage.
Odor Control Features
Effective odor control separates a pleasant composting experience from one that’ll drive you away from your kitchen. You’ll want charcoal filters as your first line of defense—they absorb and trap odors from decomposing food waste before they become noticeable. Look for bins with airtight lids and well-sealing designs that prevent smells from escaping into your surrounding space. Proper ventilation matters too, as bins with strategically placed air flow vents expel stale air while drawing in fresh oxygen, reducing odor buildup naturally.
Consider models constructed with antimicrobial materials that inhibit odor-causing bacteria growth at the source. Remember that even the best-designed bin requires your attention—you’ll need to commit to regular cleaning and maintenance to keep unpleasant smells under control consistently.
Material and Durability
The material you choose determines how long your under-sink compost bin will last and how well it’ll perform under daily kitchen conditions. Stainless steel offers superior durability and rust resistance, making it ideal for humid environments. If you prefer something lighter, standard plastic bins clean easily but ABS plastic provides better impact resistance with less risk of cracking. Powder-coated steel combines modern aesthetics with corrosion protection, giving you style and longevity.
Pay attention to material thickness and quality—thicker construction withstands daily wear better. Your bin faces constant exposure to moisture, food waste, and frequent opening, so investing in quality materials prevents premature replacement and guarantees reliable performance throughout years of use.
Lid Design and Access
Every time you scrape leftovers into your compost bin, you’re dealing with its lid—and this interaction happens multiple times daily, making lid design one of your most important considerations. You’ll want a lid that operates smoothly with one hand, especially when you’re juggling kitchen tasks. Lift-up lids offer quick access but often compromise on sealing effectiveness compared to sliding or twist-off designs.
For odor control, prioritize lids with airtight seals and built-in charcoal filters—these features prevent fruit fly invasions and contain smells. The best designs let you partially open the bin for quick disposal while keeping the main compartment sealed, minimizing odor release while maintaining convenience during meal prep.
Cleaning and Maintenance
Beyond choosing the right lid, you’ll need to think about how you’ll keep that bin fresh and sanitary over months of daily use. Look for compost bins with smooth, non-porous interior surfaces that you can easily clean with soap and water. Opt for models with removable liners or components that separate for thorough disinfection. Choose bins made from durable materials like stainless steel or high-quality plastic that resist staining and odor absorption.
Check that the filter or ventilation system can be easily accessed and replaced when needed to maintain effective odor control. Consider the bin’s shape and size to guarantee it fits conveniently in your sink or dishwasher, if the manufacturer recommends machine washing. These features will drastically reduce your maintenance time.
Space-Saving Configuration
When you’re working with limited cabinet space, choosing a compost bin with a smart vertical design becomes essential. Under sink models feature slim, tall profiles that maximize storage capacity while minimizing their footprint. You’ll keep your counter space free for meal prep instead of dedicating it to composting. Look for bins with mounting capabilities that attach to cabinet doors or walls, letting you position your compost bin exactly where it’s most accessible without sacrificing valuable storage area.
The compact design doesn’t mean you’re compromising on capacity. These space-efficient bins tuck away discreetly beneath your sink, keeping composting convenient and your kitchen uncluttered. This flexibility proves particularly useful in small kitchens or apartments where every inch matters.
Frequently Asked Questions
How Often Should I Empty My Under Sink Compost Bin?
You should empty your under sink compost bin every 3-7 days, depending on its size and how quickly you fill it. Don’t wait too long, or you’ll risk unpleasant odors and fruit flies invading your kitchen space.
Can I Compost Meat and Dairy in These Bins?
You shouldn’t compost meat, you shouldn’t compost dairy, and you shouldn’t compost oils in standard bins. They’ll attract pests, create foul odors, and break down improperly. Stick to plant-based scraps for best results.
What Do I Do With Collected Compost if I Don’t Garden?
You can donate your compost to local community gardens, offer it to neighbors who garden, sell it online, or contact your city’s composting program. Many farmers’ markets also accept compost donations from residents.
How Do I Clean My Under Sink Compost Bin Properly?
Empty your bin completely, then wash it with hot soapy water and a scrub brush. Rinse thoroughly, spray with white vinegar to eliminate odors, and let it air dry before reinstalling. You’ll prevent bacteria buildup this way.
Will Compost Bins Attract Fruit Flies or Other Pests Indoors?
Yes, compost bins can attract fruit flies if not maintained properly. You’ll prevent pests by keeping your bin sealed tightly, emptying it regularly, avoiding meat and dairy, and layering food scraps with carbon materials like newspaper.
