Can You Recycle Pizza Boxes?

Quick Answer

It depends on the grease level. Lightly soiled pizza boxes can often be recycled in many areas. Heavily greased or food-stained portions should be torn off and composted or trashed, while clean portions can be recycled. Rules vary by location, so check your local recycling guidelines.

Key Takeaways

  • Pizza boxes are made of corrugated cardboard, which is highly recyclable.
  • Some cities specifically accept pizza boxes; others still reject any food-contaminated cardboard.
  • Wax-coated or plastic-lined pizza boxes have different recycling rules than plain cardboard.

Explanation

Pizza boxes are made of corrugated cardboard, which is highly recyclable. The concern is grease contamination. Heavy grease can disrupt the recycling process by interfering with the paper fibers' ability to bond when making new cardboard products.

The recycling industry has become more tolerant of minor grease contamination in recent years. Many facilities can now handle lightly soiled boxes. However, boxes saturated with grease or containing stuck-on cheese and food scraps are still problematic and should not go in recycling.

A practical approach is to tear the box: if the lid is clean, recycle it. If the bottom is greasy, compost it (cardboard is compostable) or throw it away. Removing food residue before recycling any food container improves recyclability.

Things to Know

  • Some cities specifically accept pizza boxes; others still reject any food-contaminated cardboard.
  • Wax-coated or plastic-lined pizza boxes have different recycling rules than plain cardboard.
  • Composting greasy cardboard is an excellent alternative to trashing it where composting is available.

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