eggs in glass

How to Water Glass Eggs?

Water glassing is an age-old technique for preserving eggs, experiencing a resurgence among home gardeners and self-sufficiency enthusiasts. This method involves submerging fresh eggs in a solution of sodium silicate, which seals their pores and prevents spoilage. Water glassing allows for storing eggs for an extended period without refrigeration, making it a practical and cost-effective preservation method.

Essential Supplies for Water Glassing

To begin water glassing, you’ll need several key supplies. First and foremost are fresh, unwashed eggs, as the natural protective coating on their shells is crucial for the process. You’ll also need a water glassing solution, primarily composed of sodium silicate, and a clean, airtight container large enough to hold the eggs and solution. It’s important to use sodium silicate, as it’s safe and effective for preserving eggs.

Preparing the Water Glassing Solution

Creating the water glassing solution requires careful attention. Mix water and sodium silicate in a specific ratio, usually 1 part sodium silicate to 9 parts boiled (and then cooled) water. It’s vital to handle sodium silicate with care, wearing gloves and ensuring good ventilation. Achieving the right concentration is key, as it ensures the eggs are adequately preserved without damaging their shells.

Selecting and Preparing Eggs for Water Glassing

The success of water glassing largely depends on the eggs you choose. Select eggs that are fresh, ideally less than a week old. The eggs should be clean, with intact shells, but importantly, they should not be washed. Washing removes the egg’s natural protective bloom, which is essential in this preservation process. If there’s visible dirt on the eggs, gently brush it off without using water.

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Inspect each egg carefully for any cracks or defects. Even a small crack can compromise the egg’s integrity and make it unsuitable for water glassing. Use a candling method, if available, to ensure the eggs are free from internal cracks and abnormalities.

The Process of Water Glassing Eggs

Once your eggs and solution are ready, begin the water glassing process. Carefully place the eggs into your chosen container. It’s important to handle them gently to avoid cracking. Pour the prepared water glassing solution over the eggs, ensuring they are completely submerged. The solution should be deep enough to cover the eggs by at least two inches, as this ensures all parts of the egg are in contact with the sodium silicate.

Arrange the eggs in such a way that they don’t touch each other. This prevents them from cracking and allows the solution to circulate around each egg. Once all the eggs are submerged and spaced properly, seal the container. The seal is vital to prevent evaporation and contamination.

Storing Water Glassed Eggs

Proper storage is crucial for the longevity of water glassed eggs. Store the sealed container in a cool, dark place. A cellar or a cool pantry are ideal locations. The temperature should be consistent, ideally between 50°F and 70°F. Fluctuations in temperature can affect the quality and safety of the eggs. Under these conditions, water glassed eggs can be stored for up to a year or more, maintaining their freshness and edibility.

Using Water Glassed Eggs

When you’re ready to use your water glassed eggs, remove them from the solution with clean hands or a spoon. Rinse each egg under running water before use. It’s important to check for freshness before consuming. Perform a float test by placing the egg in a bowl of water; a fresh egg will sink, while a spoiled egg will float.

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Water glassed eggs can be used just like fresh eggs in cooking and baking. However, it’s wise to crack each egg into a separate container before adding it to your dish, just to ensure its quality.


Water glassing is a remarkably effective and simple method for preserving eggs long-term. With the right supplies and careful attention to detail, you can store eggs for many months without refrigeration. Remember to select fresh, unwashed eggs, prepare the sodium silicate solution correctly, and store the eggs in a cool, dark place. This method not only offers a practical solution for egg storage but also provides an interesting way to explore traditional food preservation techniques. Whether you’re a home gardener, a backyard chicken keeper, or just looking to extend the shelf life of your eggs, water glassing is a technique worth trying.

About the author

Victoria Nelson

Victoria Nelson is a passionate gardener with over a decade of experience in horticulture and sustainable gardening practices. With a degree in Horticulture, she has a deep understanding of plants, garden design, and eco-friendly gardening techniques. Victoria aims to inspire and educate gardeners of all skill levels through her engaging articles, offering practical advice drawn from her own experiences. She believes in creating beautiful, biodiverse gardens that support local wildlife. When not writing or gardening, Victoria enjoys exploring new gardens and connecting with the gardening community. Her enthusiasm for gardening is infectious, making her a cherished source of knowledge and inspiration.

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