Compostable Bin Liners

Product Overview

Compostable bin liners are plant-based waste containment solutions designed to support sustainable waste diversion efforts for residential, commercial and municipal organic waste programs. Manufactured from plant-derived materials, these liners are built to replace traditional plastic waste bags, eliminating persistent plastic residue and microplastic contamination in finished compost outputs. These liners are often marketed as biodegradable plastic bags or biodegradable bags, sized to fit widely used US countertop compost pails in both 1-gallon and 3-gallon capacities, with the 3-gallon format representing the dominant size in the North American countertop compost bin market. AISUNBIO’s 3-gallon compostable liner is BPI Compostable certified and produced to ASTM D6400 standards, accepted by most major US municipal organics collection programs. The liners feature a durable star-seal base that prevents bottom blowout even when holding wet food waste, eliminating messy leaks and bag failure during waste collection and transport. Each pack is presented in a retail-ready display box printed with official certification marks, dedicated brand space, product descriptive text and space for UPC barcodes, making the product suitable for retail shelf placement and direct-to-consumer sales. Unlike conventional plastic bags, these liners break down fully during industrial composting processes, leaving zero microplastic residue in the final compost material, and can be co-composted directly with food waste at all BPI-certified compost facilities.

Core Product Features

The compostable bin liners are engineered to deliver reliable performance across the full waste collection lifecycle, with key design attributes aligned to real user needs for countertop composting. The plant-based material composition is formulated to provide sufficient tensile strength to hold food scraps, coffee grounds, fruit and vegetable peels, and other wet organic waste without tearing or leaking, even when the bag is fully loaded. The star-seal bottom design distributes weight evenly across the base of the bag, eliminating the common failure point of flat-seal bags that often split open under the weight of wet, dense food waste. The product is fully certified to meet BPI Compostable requirements, with official certificate number 10529065-2 issued by BPI North America, and full supporting documentation including test reports, safety data sheets and certificates of conformance available for every production batch. The liners are fully compliant with ASTM D6400, the leading US standard for compostable plastics, ensuring they are accepted for processing at municipal compost facilities across the country. The retail display packaging is designed to meet retail merchandising requirements, with clear printed certification marks that build consumer trust, dedicated space for brand identification, product information panels, and designated areas for UPC barcodes to support retail checkout processes. The material breaks down completely during industrial composting, with no remaining plastic fragments or microplastics left in the finished compost, supporting the production of clean, high-quality compost for agricultural, landscaping and residential soil amendment use.

Technical Specifications

All product specifications are aligned to real-world use cases for North American countertop composting applications. The core product formats include bin liners, countertop compost bags and 3-gallon waste liners, with material options including PBAT + PLA blend, PE, PCR and recycled material formulations. The standard capacity for the flagship 3-gallon liner is approximately 11 liters, engineered to fit all popular US countertop compost bin models on the market. The liner thickness ranges from 13 to 18 micrometers, balancing sufficient puncture resistance with thin, flexible material that is easy to open, place in pails and tie closed for transport. The seal type for all liners is a star-seal bottom, optimized for leak and blowout resistance. The pack format consists of rolls of 25 to 30 liners, contained within a printed retail display box. Available color options for the liners include natural uncolored, white and light green, to match different brand and aesthetic preferences. The product holds official BPI Compostable certification and meets ASTM D6400 compliance requirements. Standard order minimum is 30,000 pieces, with a production lead time of 20 to 28 days following artwork approval for display box printing.

Key Performance Advantages

These compostable bin liners deliver meaningful advantages over both conventional plastic liners and lower-quality compostable bag alternatives for countertop composting use cases. First, the plant-based material composition eliminates the microplastic residue associated with traditional plastic bags, ensuring that compost produced from collected organic waste remains free of persistent plastic contaminants, which is a critical requirement for high-value compost products used in food production and residential gardening. Second, the BPI and ASTM D6400 certifications remove a major barrier for users participating in municipal compost programs, as many programs reject uncertified compostable bags that do not meet processing standards, preventing users from having to separate bag liner material from food waste during drop-off. Third, the star-seal base design eliminates the common frustration of bag blowouts and leaks, which can create messy countertop surfaces, unpleasant odors, and cross-contamination of recycling or waste streams. Fourth, the retail-ready display packaging is designed to support easy shelf placement, with clear certification messaging that helps consumers quickly identify the product as a valid, accepted compostable option, reducing purchase friction for eco-conscious shoppers. Fifth, the product is fully compatible with co-composting processes at all BPI-certified facilities, meaning users do not need to empty food waste from the liner before dropping off organic waste, saving time and reducing contact with messy food scraps. The material breaks down at a rate matched to standard industrial composting timelines, ensuring it does not leave partial fragments in the compost pile, and does not interfere with the composting process itself.

Target User Groups

The compostable bin liners are designed to serve a wide range of user groups across the North American market. These include retail grocery chains and eco-friendly product retailers looking to stock certified compostable waste bags for their sustainability-focused customer base, municipal waste management departments seeking approved liner options for their residential organics collection programs, commercial office buildings and food service establishments looking to implement composting programs for food waste, residential households participating in curbside compost collection, and compost facility operators looking for approved bag materials that will not disrupt their processing operations. The product is also suitable for sustainable lifestyle brands looking to offer compostable waste solutions as part of their product portfolio, as the retail display box includes dedicated space for brand identification to align with brand aesthetic requirements. The 3-gallon size is particularly well-suited for the dominant countertop compost pail format used in North American households, making it a natural fit for brands targeting residential eco-conscious consumers.

Common Use Scenarios

The liners are designed for use across a wide range of countertop composting scenarios. In residential kitchens, the liners fit neatly inside standard 1-gallon and 3-gallon countertop compost pails, holding fruit and vegetable scraps, coffee grounds, tea bags, eggshells, and other food waste without leaking, making it easy to collect scraps between weekly curbside compost pickups. In commercial food service settings such as cafes, restaurants and office break rooms, the liners are used to collect food waste from prep areas and customer dining spaces, supporting organics diversion programs that reduce the volume of waste sent to landfills. In retail settings, the liners are sold as a packaged consumer product, displayed on store shelves alongside other kitchen waste and sustainability products. The liners are also suitable for use in community garden programs, where collected food waste is processed on-site into compost for garden use, as the bags break down fully without leaving plastic residue in the soil. Because the liners are accepted at BPI-certified compost facilities, they can be used in any location where industrial composting infrastructure is available, eliminating the need for users to manually remove food waste from the bag before composting.

Industry Pain Points Addressed

The compostable bin liners are designed to solve longstanding pain points associated with home and commercial composting programs. A key pain point addressed is the issue of uncertified compostable bags being rejected by municipal compost programs, which often requires users to empty food waste from bags, creating messy, unpleasant experiences that reduce participation in compost programs. By carrying full BPI and ASTM D6400 certification, the liners are accepted by most major US municipal programs, removing this barrier and making composting more convenient for users. Another common pain point is bag failure, where thin, low-quality compostable bags tear or split open under the weight of wet food waste, creating leaks, odors, and cross-contamination. The star-seal base design and 13-18 micrometer thickness of the liners eliminates this failure point, providing reliable strength even when holding dense, wet food waste. The product also addresses the pain point of microplastic contamination in compost, as the plant-based material breaks down fully without leaving residual plastic fragments, ensuring that finished compost is clean and safe for use in food growing applications. For retail sellers, the product addresses the pain point of non-compliant packaging that lacks clear certification messaging, which can lead to low consumer trust and low sales, as the display box includes clearly printed certification marks, brand space, product information and UPC barcodes to meet retail merchandising requirements.

Frequently Asked Questions

Q1: Are these compostable bin liners accepted by US municipal compost programs?
A: Yes, the liners are BPI Compostable certified and meet ASTM D6400 standards, making them accepted by most major US municipal organics collection programs, and fully processable at all BPI-certified compost facilities. Users can co-compost the liners directly with food waste without needing to empty the contents.
Q2: What size bins do these liners fit?
A: The liners are sized to fit popular US 1-gallon and 3-gallon countertop compost pails, with the 3-gallon format being the dominant size in the North American countertop compost bin market, holding approximately 11 liters of waste.
Q3: Do these liners leave plastic residue in compost?
A: No, the plant-based material breaks down fully during industrial composting, leaving zero microplastic or plastic residue in the finished compost output, supporting the production of clean, high-quality compost.
Q4: What prevents the bag from splitting open at the bottom when holding wet food waste?
A: The liners feature a star-seal base design that distributes weight evenly across the bag bottom, preventing blowouts and leaks even when holding dense, wet food waste. The liner thickness ranges from 13 to 18 micrometers to provide reliable puncture and tear resistance.
Q5: What documentation is available for the product?
A: The product holds BPI North America certificate number 10529065-2, with full supporting documentation including test reports, safety data sheets and certificates of conformance available for every production batch.