What Should I Do With Restaurant Take-Out Containers? A Sorting Guide

You picked up Thai food in a clamshell, leftover pasta in a foil-coated paper box, soup in a paper cup with a clear plastic lid, and a side of rice in a small plastic container. Now you’re standing over your kitchen recycling bins and realizing that all four containers are made of different materials and almost certainly have different correct destinations.

This article gives you the answer for every common take-out container type. Read once, sort confidently for years.

First: the rinse rule

Before any of the specific calls below: rinse the container quickly. Hot tap water, 5-10 seconds, no soap needed unless there’s a lot of grease.

Why this matters: food residue contaminates recycling streams and turns compostable items into rejected compost loads at commercial facilities. A greasy pizza box in the paper recycling bin can contaminate a half-ton of paper. A clean container is the difference between recovery and landfill.

If a container is so greasy or food-stained that a quick rinse doesn’t clean it, just trash it. Don’t put contaminated items in recycling.

The big five containers

Most take-out containers fall into one of five material categories. Here’s what to do with each.

1. Clear plastic clamshells

The transparent hinged containers that come from a deli counter, salad bar, or many sit-down restaurants offering takeout.

Material: typically PET (recycling code #1) or PVC (code #3) or PLA (compostable, but visually identical to plastic).

How to identify which: look at the bottom for a recycling code. PET clamshells have a small triangle with a 1 inside. PLA clamshells often say “compostable” or have a BPI logo. PVC clamshells (less common) have a 3.

Destinations:
– PET (code #1): curbside recycling. Most US municipalities accept these in the regular plastic stream. Rinse first.
– PLA (compostable, BPI-certified): commercial composting if your city has it (~30% of US households). Otherwise, landfill — sadly.
– PVC (code #3): trash. PVC is not accepted in most US recycling programs.

If unmarked: assume trash. Don’t put unknown plastic in recycling — contamination from unidentified plastics is a real problem for recycling facilities.

2. Foam containers

The white “Styrofoam” containers (technically expanded polystyrene, EPS) that have been the bottom-end takeout standard for decades.

Material: EPS (recycling code #6) usually.

Destination: trash. Some cities (Berkeley, Seattle, NYC) have banned foam containers; if you’re in one of those cities, you shouldn’t have one to dispose of, but if you do, trash. Foam doesn’t recycle in any curbside program, and the few specialty foam-recycling programs that exist (Dart’s Recycla-Pak, for example) require mail-in or drop-off at specific locations.

Don’t put foam in compost. Don’t put foam in regular recycling. It doesn’t belong there.

The good news: foam has been declining as a takeout material. Major restaurant chains have largely phased it out in favor of paper or bagasse. If you regularly get takeout in foam, ask the restaurant if they have alternatives — many don’t realize how many customers care.

3. Paper-based containers (with or without coating)

The folded paperboard containers, paper soup cups, paper hot cups, and paper-based clamshells.

Material: Paper, often with a plastic (PE) or PLA lining for moisture resistance.

Destination: this is where it gets tricky.

• Paper with NO coating (rare in takeout, but exists for dry items): paper recycling. These are clean cardboard, fully recyclable.
• Paper with PE plastic lining (most paper hot cups, most folded paperboard containers): trash, in most cities. The plastic lining is fused to the paper, and standard paper recycling can’t separate them. A few cities accept these in special recycling streams (Seattle, Portland for “coated paper cups”) — check your local guidance.
• Paper with PLA lining (compostable paper containers, often labeled): commercial composting if your city accepts it. Otherwise, landfill.
• Folded paper carton (the classic Chinese-takeout-style box): these are usually wax-coated paper. Trash, in most cities. A small minority of composting programs accept these. Check locally.

The lining is the deciding factor. If you can peel the inside lining and see plastic film coming off, it’s plastic-lined. If the inside feels like uncoated paper with a slight gloss but no separable film, it’s likely PLA-lined or uncoated.

When in doubt: trash.

4. Bagasse (sugarcane fiber) containers

The brown or off-white molded fiber containers — plates, bowls, and clamshells made from sugarcane bagasse, sometimes mixed with wheat straw or palm leaf.

Material: Pressed agricultural fiber, typically without lining (some have a PLA inner coating).

Destination: commercial composting if your city has access. Many commercial composters specifically accept these. Some backyard composters succeed with them at slower breakdown rates.

In curbside compost streams: yes, generally. In curbside recycling: no. In trash: yes if no compost option exists.

Bagasse is one of the cleanest takeout materials. If your restaurant uses compostable food containers made from bagasse, your sorting is straightforward.

5. Aluminum containers

The metallic foil pans you sometimes see for takeout pasta, casseroles, or bulk catering items.

Material: Aluminum, usually with a thin paper or cardboard lid.

Destination: rinse well, then aluminum recycling. Aluminum recycles infinitely with minimal quality loss; it’s one of the cleanest recycling streams in the US. Aluminum container recovery saves 95% of the energy that would be required to mine and process new bauxite.

The lid (paper, cardboard, or sometimes plastic): separate first, dispose of as appropriate for that material.

Caveat: if the aluminum container is heavily food-stained and can’t be cleaned, trash it. Contaminated aluminum gets rejected at recycling facilities.

The lid problem

Most takeout containers come with separate lids made from a different material than the container. This is often the most confusing part.

Plastic lid on paper cup: lid is typically polystyrene or polypropylene plastic. Recycle the lid in plastic stream (if marked recyclable in your area) or trash. Don’t compost it even if the cup is compostable.

PLA lid (compostable, often clear): commercial composting. These look like clear plastic but say “compostable” or have BPI logo.

Aluminum lid: aluminum recycling.

Paper lid: paper recycling (if clean) or compost.

Always separate the lid from the container before disposing. Mixed materials in a recycling bin get rejected at the facility.

Other common items

A few other take-out items that bear mention:

Plastic flatware (forks, spoons, knives): trash, mostly. Most municipal recycling programs don’t accept plastic flatware due to sorting difficulty and quality. If your restaurant provided compostable utensils made from CPLA, those go to commercial composting.

Chopsticks: if wood (most), compost. If plastic, trash.

Plastic sauce cups: trash. Too small for sorting machines to handle reliably.

Paper napkins: compost (commercial or backyard) if there’s no plastic coating.

Paper bag with food residue: trash if greasy; compost or recycle if clean.

Plastic carryout bag: drop-off recycling at grocery store (Target, Whole Foods, most major grocers accept these). Not curbside.

Compostable carryout bag (labeled, BPI-certified): commercial composting or trash if no compost access.

Straws: see the disposal logic specific to compostable straws — compostable straws made from paper or PHA can go to commercial composting; plastic straws are trash.

What to do if your city doesn’t have commercial composting

About 70% of US households don’t have curbside commercial composting access. For these households, the “compostable” containers are functionally equivalent to landfill — they end up in regular trash.

In this case, the priority order shifts:

1. Choose restaurants that use reusable or recyclable packaging. PET clamshells, aluminum containers, and paper containers without plastic coatings all recycle cleanly. These end up worse than commercial-composted compostables, but better than landfill.

2. Choose restaurants that use BYO-friendly policies. Some restaurants will fill your own container if you bring it. This is the lowest-waste option by far. Chipotle, many Asian restaurants, and a growing number of fast-casual chains accept this in their stores.

3. Choose restaurants that use bagasse or paper with no plastic lining. Even without commercial composting, these are at worst landfilled, which is environmentally similar to landfilling plastic (slightly better because they decompose into soil over decades rather than persisting indefinitely).

4. Avoid foam at all costs. Even in a no-compost city, foam is the worst choice. Plastic and paper alternatives all beat it.

What to do if your city DOES have commercial composting

In compost-active cities (SF Bay Area, Seattle, Portland, Boulder, Minneapolis, NYC’s organic-friendly buildings, Boston’s growing program, and an expanding list of others), the priority order is different:

1. Sort the takeout container correctly to compost stream. BPI-certified compostable items go to the green/compost bin. This is the highest-value disposal pathway.

2. Sort plastic and aluminum correctly to recycling. Don’t let compostable enthusiasm cause you to dump plastic in compost — contamination still matters.

3. Trash genuinely non-recoverable items. Foam, mixed-material packaging, and contaminated containers go to trash.

A quick reference card

Save or screenshot this for your kitchen:

When restaurants get it wrong

Even with the best intentions on your end, restaurant choices sometimes force suboptimal disposal:

Mixed-material containers (paper outside, plastic inside, foil lid): these are designed for performance, not disposal. The right answer is often trash because the materials can’t be separated.

Unlabeled “biodegradable” containers: without BPI or CMA certification, “biodegradable” claims aren’t trusted by commercial composters. Many of these get rejected at the facility and routed to landfill. Trash these unless you can verify certification.

Black plastic containers: sorting machines at recycling facilities often can’t see black plastic on their black conveyor belts. Even if the material is technically recyclable, it tends to end up in landfill. Black takeout containers are best treated as trash.

If you regularly get takeout from a restaurant that uses inappropriate packaging, mention it. Restaurants increasingly track customer feedback on sustainability and switching suppliers is often easier than they think. A polite note (“I love your food but the foam containers are tough to dispose of”) sometimes lands with the manager.

A note on third-party delivery services

DoorDash, Uber Eats, Grubhub, and similar services often add their own packaging on top of the restaurant’s: a paper bag, a flat plastic bag for items that shouldn’t tip, sometimes a separate utensil packet.

The good news: most of this added packaging is recyclable. The paper bag goes to paper recycling. The plastic bag goes to grocery-store film drop-off. The utensil packet is the wild card — some are paper with compostable utensils (recover individually), some are plastic with plastic utensils (trash).

Don’t accept utensil packets if you don’t need them; many delivery apps have a “no utensils” toggle.

The bottom line

Restaurant take-out containers come in a dozen materials with three different correct destinations: compost, recycle, or trash. The right answer depends on the specific material and your local infrastructure.

The 80/20 rule for most households:
– Clear plastic = recycle (rinsed).
– Paper with plastic = trash.
– Bagasse / certified compostable = compost (if available) or trash.
– Foam = trash, always.
– Aluminum = recycle, always.

For everything else, look for certification labels and refer back to this guide. Five seconds of sorting per container, across a household’s year of takeout meals, makes a real difference in the diversion rate of your waste stream — and tells the restaurants you patronize, through your dollars, that packaging choices matter.

For B2B sourcing, see our compostable takeout containers catalog.

For procurement teams verifying compostable claims, the controlling references are BPI certification (North America), EN 13432 (EU), and the FTC Green Guides on environmental marketing claims — these are the only sources U.S. enforcement actions cite.