Can Whole Eggs Be Composted? Exploring the Benefits and Methods

Can Whole Eggs Be Composted?

Composting is an eco-friendly way to reduce waste and create nutrient-rich soil for your garden. It’s a great practice that can help divert organic materials from landfills and contribute to a more sustainable lifestyle. While many common kitchen scraps like fruit peels, vegetable trimmings, and coffee grounds are commonly composted, you may wonder if whole eggs can be added to your compost pile. In this blog post, we’ll explore whether or not whole eggs can be successfully composted.

The Science Behind Composting

To understand whether or not eggs can be composted effectively, it’s important to grasp the science behind the process. Composting is essentially a natural decomposition process where organic matter breaks down into rich humus under specific conditions. In order for successful composting to occur, certain factors need to be balanced such as carbon-to-nitrogen ratio (C:N), moisture levels, oxygenation, temperature control, and microbial activity.

Eggshells in Compost

Eggshells are primarily composed of calcium carbonate which is beneficial for plants’ growth. Therefore, eggshells are indeed suitable for composting! When adding eggshells into your compost pile or bin:

  • Rinse them thoroughly with water before adding them.
  • Crush the shells into smaller pieces using your hands or a mortar and pestle.
  • Mix them well with other organic materials such as leaves or grass clippings.
  • Avoid large chunks of shells that might take longer to break down.
  • Ensure proper balance of brown (carbon-rich) and green (nitrogen-rich) materials in your composter.

Whole Eggs in Compost: Yes or No?

Unlike eggshells, whole eggs can be more problematic when it comes to composting. The reason for this lies in their high protein content, which attracts pests like rats and raccoons. These animals are attracted to the scent of the eggs and may dig into your compost pile, causing a mess.

However, if you’re determined to compost whole eggs, there are a few precautions you can take:

  • Bury the eggs deep within your compost pile.
  • Surround the eggs with a thick layer of carbon-rich materials like leaves or sawdust.
  • Avoid adding too many eggs at once; instead, add them gradually over time.
  • Mix the contents of your composter regularly to deter pests.

The Alternative: Eggshells Only Composting

If you want to avoid any potential pest problems associated with whole eggs while still recycling egg waste, an alternative method is to create an eggshell-only composting system. Collect all unused shells from cooking or baking activities and follow these steps:

  1. Rinse the shells thoroughly and let them air dry on a paper towel for several days until completely dry.
  2. Crush dried eggshells into small pieces using a blender or by hand.
  3. Create a separate container specifically for storing crushed eggshells near your kitchen sink or countertop area for easy access when needed as fertilizer supplementation.

  4. Add small amounts of crushed eggshells directly around plants in your garden beds or mix them with potting soil before planting new seedlings.
  5. This dedicated “eggshell compost” can provide calcium to your plants and help prevent issues like blossom end rot in tomatoes or peppers.


While whole eggs can be composted, it’s important to consider the potential pest problems they may attract due to their high protein content. To minimize these risks, burying whole eggs deep within your compost pile and surrounding them with carbon-rich materials is recommended. However, if you want a hassle-free option that still allows for recycling egg waste, focusing on composting eggshells alone is a more suitable solution. By following the steps outlined above, you’ll be able to contribute to sustainable practices while enriching your garden soil.