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Water Glassing Eggs for Long-Term Storage: A Time-Tested Preservation Method


In today’s fast-paced world, finding ways to preserve food for extended periods has become increasingly important. Water glassing eggs, an age-old preservation method, offers a practical solution for keeping eggs fresh and safe to consume for many months. In this article, we will explore the benefits and step-by-step process of water glassing eggs, along with some tips to ensure optimal results. Let’s dive in!

What is Water Glassing?

Water glassing, also known as sodium silicate preservation, is a traditional technique that has been used for generations to store eggs without refrigeration. Alternatively, calcium hydroxide (pickling lime) can be used and is often more available. The process involves immersing eggs in a water glass solution, creating a natural barrier that seals the pores of the eggshell, thereby preventing air and bacteria from entering. By keeping eggs in this state of suspended freshness, you can have a steady supply of eggs year-round, even during the winter months when egg production tends to decline.

The Benefits of Water Glassing Eggs

  1. Long-Term Preservation: Water glassing allows eggs to stay fresh for up to 9 to 12 months, significantly extending their shelf life compared to refrigerated storage, which typically lasts for only a few weeks.
  2. Cost-Effective: As water glassing doesn’t require any specialized equipment, it is an economical preservation method, especially for those with a backyard flock of chickens.
  3. Sustainable: By preserving excess eggs through water glassing, you reduce food waste and promote sustainable living practices.

Step-by-Step Guide to Water Glassing Eggs

Step 1: Gather Supplies

water glassing prep

Before starting the water glassing process, ensure you have the necessary supplies ready:

  • Freshly laid, unwashed eggs: Collect eggs that are clean and free from any cracks or defects. Place them in an egg flat tray for inspection and preparation.
  • Sodium silicate solution: Purchase food-grade sodium silicate, which is a water glass solution available at most hardware stores or online.
  • A clean, airtight container: Select a glass or food-grade plastic container with a tight-fitting lid that can accommodate your eggs.
  • Water: You will need enough water to create the water glass solution.

Step 2: Prepare the Water Glass Solution

Follow these simple steps to create the water glass solution:

  • In a separate container, mix one part sodium silicate with nine parts water. Stir thoroughly until well combined.

Step 3: Submerge the Eggs

Place the fresh, unwashed eggs gently into the container, ensuring they are fully immersed in the water glass solution. The eggs should be covered by at least one inch of the solution.

Step 4: Seal the Container

Securely seal the container with its lid, making sure it is airtight. This step is crucial to prevent air from entering and spoiling the eggs.

Step 5: Store in a Cool Place

Find a cool, dark spot to store the container. Ideally, the temperature should be between 45°F to 55°F (7°C to 13°C). A root cellar, basement, or a cool pantry works well for this purpose.

Tips for Successful Water Glassing

  1. Use Fresh, Unwashed Eggs: Unwashed eggs retain their natural protective coating, enhancing the success of the water glassing process.
  2. Check for Cracks: Ensure that the eggs you choose are free from cracks or damage. Cracked eggs are more susceptible to spoilage and should be used immediately.
  3. Rotate Your Stock: When using water glassed eggs, practice a first-in, first-out approach. Consume the oldest preserved eggs first to maintain their freshness.
  4. Monitor the Solution: Over time, the water glass solution may thicken or become cloudy due to the eggshells’ natural calcium reacting with the sodium silicate. If this occurs, add a small amount of water to restore the desired consistency.


Water glassing eggs is a practical and time-tested method for long-term egg storage. By creating a protective barrier around the eggs, this traditional preservation technique keeps them fresh and safe to consume for up to a year. Whether you have a surplus of eggs from your backyard flock or wish to stock up during peak production seasons, water glassing is a sustainable and cost-effective solution. By following the step-by-step guide and tips mentioned in this article, you can confidently preserve your eggs and enjoy farm-fresh goodness throughout the year. Happy Chickening!

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