Compostable materials can break down through composting under specified conditions. Biodegradable materials can be broken down by microorganisms, but the word alone does not tell you where that will happen or how long it will take. For packaging, check whether it is intended for home or commercial composting, then check whether your collection program accepts that exact kind of item.
A banana peel and a takeaway cup need different decisions. The peel is a familiar compost ingredient. The cup may have a coating, a separate lid, and instructions printed on its base that change where each part belongs. The EPA explains why biodegradable, compostable, and biobased plastics are different.
Cover photo: Mikhail Nilov / Pexels, used under the Pexels License. Packaging shown for illustration; appearance does not establish compostability.
Jump to label meanings, checking certification, common items, or New Jersey collection rules.
What Do Compostable and Biodegradable Mean?
Compostable is a more specific claim than biodegradable. A product intended for composting needs to break down within the conditions and time frame of that process, with suitable compost quality afterward. A material that biodegrades in some other setting is not necessarily an appropriate ingredient for a compost pile. BPI, a compostability certification organization, explains this distinction in its guide to biodegradable and compostable claims.
| Label | What It Describes | Your Next Check |
|---|---|---|
| Biodegradable | Breakdown by microorganisms in a particular environment. | Look for the environment and time frame. This word alone does not establish compostability. |
| Commercially compostable | Suitability for specified managed composting conditions. | Confirm a receiving program accepts the product category. |
| Home compostable | Suitability for specified home composting conditions. | Verify the certification and follow the product instructions. |
| Biobased or plant-based | Information about the material’s feedstock. | Find separate disposal instructions; plant content does not establish compostability. |
Swipe the table sideways to read every column.
The Federal Trade Commission’s Green Guides summary says compostable claims need scientific support. Claims also need qualification when an item cannot be composted safely or promptly at home, or when suitable facilities are not widely available. Broad words such as green or eco-friendly give you even less information about disposal.
How to Check a Compostable Certification
Look for a named certification and the exact product, not a leaf graphic or a similar-looking item from the same brand. Keep the outer packaging until you have checked its item number. For a takeaway order, read the cup and lid separately. They may need different bins.
The BPI product directory lets you search by company, product, or item number. BPI says all products in its catalog are certified for commercial compostability; only entries marked Yes in the home column are also certified for home compostability. A BPI listing alone therefore does not establish that an item belongs in your backyard pile.
Certification looks beyond an item falling apart. BPI’s testing requirements cover biodegradation, disintegration, and compost quality, with separate home and commercial testing conditions. Breaking a bag into smaller pieces is not enough to demonstrate compostability. Nor does a test result promise that every household pile will process it on the same schedule.
Once you find the correct listing, there is still a practical question to answer: will the place receiving your scraps take it? Send the program a photograph of the label and the product number if its instructions are unclear. Ask before buying a large box of liners or event supplies.
Home Composting and Commercial Composting Are Different
A backyard bin has changing weather, moisture, and attention. Commercial operations manage their own equipment and processing schedules. EPA advises keeping compostable bags and foodservice ware out of a typical backyard pile because it generally does not reach conditions that fully decompose them. Its home composting guide recommends checking the receiving facility before sending those materials to commercial composting, too.
If you want to try certified home-compostable packaging, follow the instructions for that specific product. BPI’s home composting guidance describes maintaining an active pile and suitable moisture. Putting a liner in a dry corner of the garden is a different treatment. A claim of home compostability should not be read as a guarantee of rapid breakdown in an unattended heap.
Worm bins and bokashi buckets also have their own feeding rules. Likewise, a processor using anaerobic digestion needs its own acceptance list. Approval for aerobic composting does not establish suitability for every other system. Our composting methods guide explains those processes.
What Goes in the Compost Bin?
Start with the system you use. For a home pile, EPA recommends familiar ingredients such as fruit and vegetable scraps, coffee grounds, plain paper filters, and dry leaves. For pickup or drop-off, the program’s accepted-items list takes precedence over a general guide. Use the table below to decide what to check, rather than treating it as Torus’s collection list.
| Item | Backyard Pile | Pickup or Drop-Off |
|---|---|---|
| Fruit and vegetable scraps | Suitable basic ingredients. Remove stickers and packaging. | Usually a core material; follow the program’s instructions. |
| Coffee grounds and plain paper filters | Suitable ingredients without plastic capsules or wrappers. | Check the accepted-items list. |
| Shredded plain cardboard | Use material without wax coating, tape, or glue. | Check whether the program takes paper or yard materials. |
| Compostable bag or liner | Keep out unless specifically certified and suitable for home composting. | Use only the type the program approves. Some programs accept no bags. |
| Cup, lid, fork, or takeaway box | Do not infer suitability from appearance or plant-based wording. | Check each component and whether the program accepts that product category. |
| Plastic wrapper or produce sticker | Remove before adding the food. | Keep out unless the program explicitly identifies the exact item as acceptable. |
Swipe the table sideways to read every column.
Paper can need a closer look, too. A cup may have a lining, and the lid may be a different material altogether. Avoid deciding from the brown color of a box or the feel of a fork. EPA’s foodservice ware guidance recommends buying commercially compostable items only when an available collection program accepts the product types being purchased.
For the food itself, see our food-scrap sorting guide. The rules for meat, dairy, and cooked food also depend on the receiving system.
Check the New Jersey Program You Use
A nearby town’s instructions may differ from your collector’s. Jersey City provides a useful example: the FAQ linked from its municipal composting page says its drop-off bins do not accept compostable plastic bags. That document is dated 2020, so check the city’s latest instructions before visiting. A bag being certified does not override the program’s sorting rules.
For Torus pickup, use our accepted-materials page and the liners we provide or recommend through our FAQ. Ask us before substituting another product or adding unfamiliar packaging. This article explains labels; it does not expand what Torus accepts.
What If Nobody Nearby Accepts the Packaging?
Keep compostable plastic out of conventional plastic recycling. EPA warns it can contaminate and disrupt that stream. Its recycling guidance recommends asking your collector or local government about a suitable drop-off option. If there is no accepting route, follow local instructions for residual trash instead of adding it to recycling or compost in the hope that someone can process it.
Do not bury the item, leave it outdoors, or expect a compostable label to make landfill disposal equivalent to composting. The FTC specifically warns against misleading degradability claims for customary disposal settings. For the next purchase, choose packaging that has a workable destination where you live.
Common Questions About Compostable Packaging
Are Biodegradable Bags Compostable?
Not necessarily. Look for a specific compostability claim supported by suitable certification, then check the receiving program’s rules. Biodegradable on its own is not enough information to choose a compost bin.
Does Plant-Based Plastic Belong in Compost?
Plant-based describes where some or all of the material comes from. It does not establish a disposal route. Read the separate composting or recycling instructions for the finished product, including any limits on where it can be processed.
Can I Put a Commercially Compostable Cup in a Worm Bin?
Do not use commercial compostability as permission to feed packaging to worms. Follow guidance for the worm bin and keep unfamiliar products out. The cup’s certification refers to a different process.
Does Compostable Mean It Will Disappear in a Few Weeks?
There is no single timetable for every product and composting system. Check the certification conditions and manufacturer’s instructions. A product tested for commercial treatment does not carry the same promise for a cold backyard pile.
Buy for the Collection System You Have
Before ordering compostable party supplies, ask the collector which items it will take. Keep the approved product details with your order, and put the same specific instructions beside the event bins. A sign saying compostable items only is less useful to a guest who cannot tell which cup they are holding.
Where washing and reuse are practical, EPA prefers reusable foodservice ware with an effective collection and washing system. At home, keep a reusable container for food scraps and follow your program’s liner instructions. If you need a collection option, our New Jersey composting guide explains how to compare pickup, drop-off, and home systems.
