Kitchen Recycling Rules by Material: A Quick-Reference Checklist

What Are the Basic Kitchen Recycling Rules for Plastics, Glass, and Metal?

The short answer: check the number inside the chasing arrows, but also check your local program—many accept only #1 and #2 plastics, clear and colored glass, and aluminum or steel cans. Rinse food residue, remove lids, and keep items loose; do not bag recyclables unless your hauler requires it.

For a general kitchen, keep three bins: one for containers, one for paper, and one for trash. Label each clearly. Before tossing, scrape out food, give containers a quick rinse with cold water (no soap needed), and let them dry. This prevents odors and keeps the recycling stream clean.

Some materials, like greasy pizza boxes or plastic bags, often cause contamination. If you are unsure, place the item in the trash rather than risk ruining a whole batch. When in doubt, check your local municipality's website or app for the most accurate rules.

Plastic Recycling in the Kitchen: Which Numbers Actually Get Recycled?

Quick answer: most curbside programs accept #1 (PET) and #2 (HDPE) plastics—think soda bottles, milk jugs, and detergent containers. #3 PVC, #6 polystyrene, and #7 mixed plastics are rarely recyclable curbside. Always check the resin code and your local guidelines.

Plastic bags and film wrap (e.g., bread bags, produce bags) are not accepted in curbside bins because they jam sorting machines. Many grocery stores have drop-off bins for clean, dry plastic film. Never put bags in your home recycling bin unless your hauler explicitly says so.

For kitchen plastic items like yogurt cups, tubs, and clamshells, #5 polypropylene is increasingly recyclable in many programs, but not all. Check the number and your local list. Rinse well; a greasy peanut butter jar can contaminate an entire bale. If the lid is smaller than a credit card, it will fall through sorting screens—recycle it separately if possible.

Glass Recycling Rules for Kitchen Jars and Bottles: Color and Contamination

Quick answer: clear, green, and brown glass jars and bottles are widely recyclable. Remove metal or plastic lids—they are often recyclable separately—and rinse thoroughly. Do not include broken glass, drinking glasses, Pyrex, or ceramics; these have different melting points and can ruin a batch.

In many single-stream systems, glass is collected separately from paper and metal to prevent breakage. Check if your program requires glass to be placed in a separate bin. If you use a drop-off center, sort by color if instructed; otherwise, keep all colors together.

Avoid recycling glass that has held chemicals or motor oil. Also, skip window panes, mirrors, and light bulbs—these are not container glass. When in doubt, toss it. Rinsing is quick: fill with water, shake, and dump. Let it air-dry before putting in the bin to prevent mold smells.

Metal Recycling in the Kitchen: Aluminum, Steel, and Foil Do’s and Don’ts

Quick answer: aluminum cans, steel cans (soup, vegetables), and clean aluminum foil are recyclable. Rinse out food residue—especially from cans—and crush cans if space allows. Remove paper labels only if your program requires; many accept them. Do not include aerosol cans unless empty and punctured (check local rules).

Steel and tin cans are magnetic; aluminum is not. Keep them separate if your hauler uses magnets at the facility. Foil should be clean and dry, and crumpled into a ball the size of your fist or larger so it does not fall through sorting screens. Pie plates and baking trays are also recyclable if free of food.

Do not recycle scrap metal, coat hangers, or pots and pans curbside—these can jam machinery. Many scrap yards or municipal drop-offs accept them separately. If a can has a plastic pour spout, remove it. For aluminum trays, quickly wipe off oil with a paper towel; heavy grease contamination can be an issue.

Paper and Cardboard in the Kitchen: What’s Recyclable and What’s Not

Quick answer: clean paper, cardboard, and paperboard (cereal boxes, egg cartons) are recyclable. Remove liners and tape, flatten boxes, and keep them dry. Greasy pizza boxes are not recyclable—the oil ruins the paper fibers. Shredded paper is generally not accepted curbside; check for special drop-off.

Kitchen paper towels and napkins are usually not recyclable because they are often soiled with food or grease. They belong in compost or trash. Milk and juice cartons (coated with plastic) are recyclable in some programs—check if your hauler accepts them; they are not universally recyclable.

For paper bags, they can be recycled, but if you use them for compost or trash, they are fine to toss. Always keep paper dry; wet paper is not recyclable. If you have a backyard compost, many paper items like uncoated plates and napkins can go there instead.