And what to use instead.

These items are prone to turning a safe compost pile into a smelly, hazardous one.

So knowing what items to keep out of your pile is crucial for healthy, thriving compost.

person adding ingredients to outdoor compost pile

Credit:Getty Images

Animal waste usually contains incredibly harmful bacteria or parasites that will stay present in the compost pile.

Not to mention the smell this waste can create in your pile.

Same with chemically-treated yard clippings.

Like the plastic cutlery, this wrapping paper can’t break down and leaves behind microplastics in your pile.

The good news is that there is!

So what are the “right materials” for compost?

Anything on this list is safe to use, according to Greenstein: