Cooking guide
How Long to Boil an Ostrich Egg
The ostrich egg is the largest egg in the world, weighing 1 to 2 kg and equivalent to 20 to 24 hen eggs. Its extraordinary thick shell, enormous yolk, and sheer mass mean boiling takes the better part of an hour — and you will need a saw to open it.
- Equals 20–24 hen eggs
- Shell too thick to crack by hand
- Feeds a group

Quick answer
Quick Answer
Yolk runny, white just set
Fully set throughout
Cannot be cracked by hand
Equivalent to 20–24 hen eggs
A genuine group egg
A knife alone is not enough
Calculator
Ostrich Egg Boiling Time Calculator
Select your desired doneness. All times assume starting with room-temperature water and the egg at approximately room temperature. These are substantial cooking times, so plan accordingly.
Cooking temperature: water at a gentle but steady boil. How to time: start counting from when the water returns to a boil after you add the egg.
A larger ostrich egg (closer to 2 kg) will need closer to 90 minutes for a hard-boil. A smaller egg (around 1 kg) may be done in 60 minutes. Cool in cold water for at least 10 minutes before opening.
Ostrich egg cooking is not a precise science in the way hen egg cooking is. The shell thickness, egg size, and water volume all introduce variability. When in doubt, err toward more time.
About this egg
Ostrich Egg Facts
The ostrich egg is the largest egg produced by any living bird. A typical egg measures about 15 cm long, 13 cm wide, and weighs between 1 and 2 kg. The shell is creamy white, smooth, and very thick — approximately 2 to 3 mm, compared to 0.3 mm for a hen egg. This shell is strong enough that a human can stand on an uncracked ostrich egg without breaking it.
The egg contains an enormous yolk, proportionally very large compared to the total volume. The contents are equivalent to 20 to 24 large hen eggs, making a single ostrich egg enough for a substantial group meal. The flavor is similar to a hen egg but richer and slightly creamier.
Ostrich eggs are available from farms that raise ostriches commercially, usually on order. They are far less common than other eggs and can be expensive. The shells are also prized as decorative and artistic objects — the thick shell can be engraved, carved, and painted.
Shell
How to Crack and Open an Ostrich Egg Shell
The shell is the biggest challenge with ostrich eggs. At 2 to 3 mm thick, it cannot be cracked by tapping on a surface the way you would a hen egg. You need a tool designed to cut or drill through hard material.
The best methods:
- Small hacksaw or serrated knife: score a circle around the top of the egg, working around evenly. Once you have scored deeply enough, the top can be tapped off with the back of a heavy knife or a mallet. This is the cleanest method for a raw egg and produces a nice bowl-shaped shell.
- Hammer and chisel: tap a chisel along a scored line to crack the shell in sections. Messier than sawing, but no specialist tools needed.
- Drill: drill a small hole, then use scissors or a craft knife to cut outward from the hole. Good for emptying a raw egg if you want to keep the shell intact for decoration.
For a boiled ostrich egg, the simplest approach is to saw around the top third after it has cooled, then spoon or scoop the contents out from the shell. The shell makes a dramatic serving vessel for scrambled egg or egg salad back inside it.
Method
How to Boil an Ostrich Egg Step by Step
- Scrub the egg under cold running water with a soft brush.
- Find a pot large enough to hold the egg with at least 3 cm of water above it. A large stockpot or canning pot usually works. Add a generous amount of salt.
- Bring the water to a boil. Then lower the egg carefully using both hands or a large ladle. The egg is heavy (up to 2 kg) — lower slowly to avoid splashing boiling water.
- Once the water returns to a gentle boil, start timing. Maintain a steady but not violent boil throughout.
- Soft-boiled: 45 minutes. Hard-boiled: 60 to 90 minutes (depending on egg size).
- Carefully remove the egg (tongs or two ladles) and transfer to a large bowl of cold water. Leave for at least 10 minutes.
- Open the shell using a small saw, chisel, or drill as described above. Scoop out or serve directly in the shell.
Cooking chart
Ostrich Egg Cooking Time Chart
| Doneness | Time from when water boils | Notes |
|---|---|---|
| Soft-boiled | 45 minutes | Yolk runny at center, white mostly set |
| Medium | 55–60 minutes | Yolk just beginning to set throughout |
| Hard-boiled (small egg, ~1 kg) | 60–70 minutes | Fully set white and yolk |
| Hard-boiled (large egg, ~1.5–2 kg) | 80–90 minutes | The extra mass requires significantly more time |
In the kitchen
How to Use Ostrich Eggs in the Kitchen
An ostrich egg can replace hen eggs in almost any recipe. One ostrich egg is roughly equivalent to 20 to 24 large hen eggs by volume, so adjust quantities accordingly. Measure the beaten contents by cup or gram rather than by egg number.
Ostrich eggs work well scrambled (use a large pan and low heat — the sheer volume takes time to set), in large frittatas or omelets (enough for 10 to 12 people), and in batched baked goods. They can also be used to make a spectacular centerpiece egg salad or deviled egg platter when hard-boiled and cut into thick slices.
For boiling, the most practical use is as a group or event egg: a single hard-boiled ostrich egg, sliced and served on a platter with good condiments, is a conversation piece and a genuine feast.
Chef tip
Checking Freshness Before Cooking
An ostrich egg can keep at room temperature for 2 to 3 weeks thanks to its thick shell. To check freshness before committing to an hour of boiling, place the egg in a large tub of water. A fresh egg sinks and lies on its side. An older egg tilts upward (the air pocket has grown). An egg that floats is not fresh and should not be cooked.
If you are not planning to cook the egg immediately, store it in the refrigerator. Bring it to room temperature for at least 30 minutes before boiling to reduce cracking from thermal shock.
Avoid this
Common Mistakes With Ostrich Eggs
- Using a pot that is too small, so the egg is not fully submerged and cooks unevenly.
- Dropping the egg into the water — at up to 2 kg, it will displace a massive wave of boiling water.
- Not having a plan for opening the shell before you start boiling.
- Underestimating the cooking time and pulling the egg out too early.
- Forgetting to cool in cold water long enough (at least 10 minutes) before attempting to open the shell.
Serving
Serving Ideas for Ostrich Eggs
A hard-boiled ostrich egg, sawn open at the top and placed on a board surrounded by bread, cured meats, and condiments, makes an extraordinary centerpiece for a brunch or garden party. The white is firm and mild; the yolk is rich and large. Slice it into thick rounds, season with flaky salt, olive oil, and herbs, and serve on a large platter.
Alternatively, scoop out a boiled ostrich egg and mix the contents into a large egg salad, deviled egg filling piped into the empty shell halves, or a massive frittata finished under the grill.
Leftovers
How to Store Cooked Ostrich Egg
Because of its size, a boiled ostrich egg almost always leaves leftovers. Store cooked ostrich egg in an airtight container in the refrigerator and use within 3 to 4 days. The texture of the white may firm up further when refrigerated; reheat gently if needed. Do not attempt to freeze cooked egg white, as it becomes rubbery.
Tools
What You Need to Cook an Ostrich Egg
- Large stockpotMust be deep and wide enough to fully submerge the egg with 3 cm of water above it.
- Large ladle or both handsFor lowering and removing the heavy egg without splashing boiling water.
- Kitchen timerFor keeping track of the long cooking time.
- Large bowl of cold water or ice bathFor stopping cooking. Use a big bowl — the egg is large.
- Small hacksaw or strong serrated knifeFor opening the shell after cooking. Essential — the shell cannot be cracked by hand.
- Kitchen mallet or heavy knife backFor tapping along the cut line to separate the shell cap.
Questions
FAQ
How long does it take to boil an ostrich egg?
A soft-boiled ostrich egg takes about 45 minutes from when the water boils. A fully hard-boiled ostrich egg takes 60 to 90 minutes, depending on its exact size. The thick shell and enormous yolk mean heat penetrates very slowly.
How do you crack open an ostrich egg?
The shell of an ostrich egg is 2 to 3 mm thick and cannot be cracked by hand like a hen egg. To open a boiled ostrich egg, use a small hacksaw or serrated knife to saw around the top, or use a strong knife and a kitchen mallet to tap and chisel along a line. A drill can also make a starter hole. Work carefully to avoid shattering the shell into the contents.
How many hen eggs does an ostrich egg equal?
One ostrich egg weighs approximately 1 to 2 kg and is roughly equivalent to 20 to 24 large hen eggs in volume. When using in recipes, measure the liquid egg content by weight or volume rather than counting, since ostrich egg size varies.
What does an ostrich egg taste like?
Ostrich eggs taste similar to hen eggs but are richer, with a creamier, more buttery yolk and a firmer, chewier white. The flavor is mild but satisfying. Many people describe it as a more intense, cleaner version of a hen egg.
How do I store an uncooked ostrich egg?
Ostrich eggs keep at room temperature for up to 3 weeks if the shell is uncracked, thanks to the very thick shell. They can also be refrigerated. Check for freshness by placing in water: a fresh egg sinks; a stale one floats. Once cracked, the contents should be used within 2 days.
Can I use an ostrich egg for scrambled eggs?
Yes, and one ostrich egg makes scrambled eggs for a large group. Crack and beat the contents, then scramble in a large pan with butter over low to medium heat. Season well. One egg can serve 8 to 12 people as part of a larger breakfast.
Keep cooking
