Most cheese can go in a compost bin, but it breaks down slowly and attracts pests if not buried properly

Yes, you can compost cheese. Hard cheeses, soft cheeses, and aged cheeses all decompose eventually. The problem is not whether they break down — it is that they attract rats, raccoons, and flies while they do. Cheese is high in fat and protein, which means it needs to be buried under at least 4 inches of brown material (leaves, wood chips, shredded paper) to stay out of reach. If you have a sealed or enclosed bin, you can compost cheese more safely than in an open pile.

The speed of decomposition depends on the type. Hard cheeses like Parmesan take months to break down. Soft cheeses like ricotta or cream cheese decompose faster but still need the same pest protection. Moldy cheese is fine to compost — the mold is already doing decomposition work for you.

Key Takeaways

  • Cheese decomposes in a compost bin but must be buried under 4 inches of brown material to prevent pest problems.
  • Hard cheeses take several months to break down; soft cheeses decompose faster but still need protection from animals.
  • An enclosed or tumbling bin is safer for composting cheese than an open pile in a residential yard.
  • Cheese with mold, rinds, or packaging should be checked — remove plastic wrapping and wax coatings before composting.

Why cheese attracts pests and how to prevent it

Cheese is a protein and fat source that smells strong to animals. Rats and raccoons can detect it from a distance and will dig into your pile to reach it. Flies lay eggs on exposed cheese, and the larvae feed as it breaks down. Burying cheese under 4 inches of brown material — dry leaves, shredded newspaper, cardboard, or wood chips — keeps it out of sight and smell range while decomposition happens.

The depth matters. A thin layer of leaves will not stop a determined raccoon. Push the cheese to the center of your pile, cover it completely, and mix it in with other materials so it is not in a single clump. If you use a tumbling bin or a sealed plastic composter, you have more protection because the container itself blocks access. Open piles in yards with wildlife nearby are riskier.

Hard cheese versus soft cheese: decomposition speed

Hard cheeses like Parmesan, Cheddar, and Gruyère are dense and low in moisture. They take 3 to 6 months to break down, sometimes longer. Soft cheeses like brie, mozzarella, ricotta, and cream cheese have higher water content and decompose faster — usually 1 to 3 months — but still need burial to stay safe from pests.

Aged cheeses are often harder and take longer. Fresh cheeses break down more quickly. If you are composting a large block of hard cheese, you can speed things up by cutting it into smaller pieces before burying it. The smaller surface area exposes more of the cheese to microbes and moisture, which accelerates decomposition.

What to remove before composting cheese

Plastic wrapping, wax coatings, and foil must come off before the cheese goes in your bin. These materials do not decompose and will remain in your finished compost. Check the packaging — some cheese comes wrapped in paper that is safe to compost, while others use plastic film or wax.

Cheese rinds (the outer layer on hard cheeses) are safe to compost and will break down with the rest. Do not remove them. If cheese has mold on it, that is fine — mold is part of the decomposition process and will not harm your compost. Moldy cheese actually breaks down faster because the mold is already breaking down the structure.

Enclosed bins versus open piles

An enclosed bin — whether plastic, wood with a lid, or a tumbling composter — is the safer choice for cheese. The container prevents animals from digging in and keeps flies from laying eggs on the surface. Sealed plastic bins work well because they trap moisture and heat, which speeds decomposition. Tumbling bins are even better because you can rotate them to mix the contents and bury the cheese deeper with each turn.

Open piles are harder to manage with cheese unless you live in an area with no wildlife pressure. Even then, you need to be disciplined about burying every piece under 4 inches of brown material. If you have an open pile and want to compost cheese, consider building a straightforward wooden frame with a lid, or use a large plastic storage bin with holes drilled in the bottom for drainage.

How to layer cheese in your compost bin

Start with a layer of brown material at the bottom — shredded leaves, cardboard, or wood chips. Add your food scraps (including the buried cheese) in a thin layer. Cover when ready with another 4 inches of brown material. Continue alternating brown and green layers as you add more material.

If you are adding cheese, do not pile it all in one spot. Spread small pieces throughout the bin as you build layers, burying each piece under brown material before adding the next layer. This prevents a concentrated pocket of decomposing cheese that attracts pests. In a tumbling bin, you can add cheese more freely because you will mix everything together when you rotate.

Signs your cheese is decomposing properly

Properly buried cheese will disappear into the pile over time. You should not see it or smell it strongly after the first few days. If you notice a sour or rancid smell coming from your bin, the cheese may not be buried deeply enough, or your pile may be too wet. Add more brown material and mix the pile to improve airflow.

If you see flies or maggots on the surface, the cheese is exposed. Bury it deeper and add a thicker layer of brown material on top. A healthy compost pile should smell earthy, not like rotting food. If the smell is strong and unpleasant, your brown-to-green ratio is off — add more dry leaves or shredded paper to balance it out.

Frequently Asked Questions

Can I compost cheese with mold on it?

Yes. Mold is a fungus that breaks down organic material, so moldy cheese actually decomposes faster than fresh cheese. Remove any plastic packaging first, then bury the moldy cheese under 4 inches of brown material. It will not harm your compost or create any safety issues.

What about cheese with a wax or plastic rind?

Remove the wax or plastic coating before composting. These materials do not break down and will stay in your finished compost. The cheese inside is fine to compost. If the rind is natural (like on aged cheddar or gouda), you can leave it on — natural rinds decompose with the rest of the cheese.

Will composting cheese make my bin smell bad?

Buried cheese should not create a strong smell. If your bin smells sour or rotten, the cheese is either not buried deeply enough or your pile is too wet. Add more brown material, mix the pile, and bury any visible cheese deeper. A well-managed compost pile smells earthy, not like spoiled food.

How long does it take for cheese to fully decompose?

Hard cheeses take 3 to 6 months or longer. Soft cheeses break down in 1 to 3 months. The exact time depends on the type of cheese, how finely you cut it, your pile temperature, and moisture levels. Warmer piles decompose faster than cold ones.

Can I compost cheese in a small apartment compost bin?

Yes, but use a sealed or enclosed bin, not an open container. Cheese in an open bin will attract pests and smell. A small tumbling composter or sealed plastic bin works well for apartment composting. Bury the cheese under brown material, keep the bin sealed, and rotate or mix it regularly to speed decomposition.