The old rule was 'grease ruins recycling,' and it's half true. A greasy or food-soiled pizza box goes in the green organics/compost cart in LA County — it's food-soiled paper. A clean, grease-free box (or the clean top half) can be flattened and recycled.
📷 Scan an item with your phoneTear the box in two: put the greasy, cheesy bottom in the green compost cart (exactly what organics collection is for), and recycle the clean top in the blue cart. If the whole thing is greasy, the whole thing composts.
Food scraps left in the box — crusts, that one sad pepperoni — also go in the green compost cart, not the trash.
Don't put a grease-soaked box in the blue recycling cart; the oil contaminates the paper bale. And don't landfill a compostable box if you have green-cart service.
Have one of these? Scan the item for an instant answer. · trending questions, updated 2026-08-07
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Not sure about something else? Point your camera at it and Recyclens tells you the right bin.