Hard Boiled Egg Timer — Perfect 10-Minute Hard Boiled Eggs Every Time
A free hard boiled egg timer tuned for fully-set yolks. Tap a preset for the exact level of doneness you want — from slightly soft center (9 min) through classic hard boiled (10 min) to well done (12 min). Includes a hard boiled egg time chart, cold-water-start mode, audio alarm, and tips for hard boiled eggs that peel cleanly every time.
Hard Boiled Egg Time Chart
How long to hard boil eggs depends on your starting water temperature, the egg size, and how firm you want the yolk. Use the hard boiled egg timer chart below as your reference. Times assume large eggs straight from the fridge.
| Hardness | From boiling water | From cold water | Yolk texture |
|---|---|---|---|
| Slightly Soft Center | 9 min | 11 min | Mostly set, slightly soft middle |
| Classic Hard Boiled ⭐ | 10 min | 12 min | Fully set, tender, bright yellow |
| Firm | 11 min | 13 min | Firmer, holds shape well |
| Well Done | 12 min | 14 min | Firm, slightly chalky — best for egg salad |
Egg size: Add ~30 seconds for extra-large eggs, subtract ~30 seconds for medium eggs. Going past 13 minutes risks the grey-green ring around the yolk.
How to Hard Boil Eggs Perfectly
- Bring water to a rolling boil in a pot deep enough to cover your eggs by an inch.
- Lower cold eggs in gently with a slotted spoon to avoid cracking the shells.
- Tap your hard boiled time above — 10 minutes is the classic, 12 if you want firmer yolks for egg salad.
- Wait for the alarm. The timer beeps and shows “DONE!” when your eggs are ready.
- Ice bath immediately for at least 5 minutes — this stops the cooking and is the single biggest factor in easy peeling.
- Crack and peel under cool running water, starting at the wider end where the air pocket sits.
Hard Boiled Egg Peeling Tips
The number-one frustration with hard boiled eggs is shells that stick. Here’s what actually works:
- Use older eggs. Eggs that are 7–10 days old peel dramatically better than fresh ones — the membrane has had time to separate from the shell.
- Always ice-bath. The temperature shock causes the egg to contract slightly inside the shell, breaking the membrane bond. Skip this step and you will fight every shell.
- Crack all over before peeling. Roll the egg gently on the counter to create a network of cracks, then peel.
- Peel under running water. Water gets between the shell and white, lifting fragments away cleanly.
- Add a teaspoon of baking soda to the boiling water. It raises the pH slightly, which helps separate the membrane.
How Long Do Hard Boiled Eggs Last?
- In the shell, refrigerated: up to 7 days in a sealed container.
- Peeled, refrigerated: up to 2 days, ideally submerged in cold water (change daily) or wrapped in damp paper towel.
- At room temperature: no more than 2 hours. Bacteria growth accelerates rapidly above 40°F (4°C).
- Freezing: not recommended — the whites turn rubbery. Yolks alone can be frozen if needed.
Hard Boiled Egg Timer FAQ
How long should I boil eggs for hard boiled?
10 minutes in boiling water gives a classic hard boiled egg with a tender, fully-set yolk. For a firmer yolk that holds up better in egg salad or deviled eggs, push to 11 or 12 minutes. From a cold water start, add about 2 minutes to each time.
Why is my hard boiled egg green around the yolk?
The grey-green ring is caused by overcooking — sulfur from the white reacting with iron from the yolk. Avoid it by sticking to 10–12 minutes max and ice-bathing the eggs the moment the timer beeps. If you regularly see the green ring, your eggs are cooking too long or sitting in hot water after.
How do I make hard boiled eggs easy to peel?
Three things matter: use eggs that are at least a week old, ice-bath them for 5+ minutes after cooking, and peel under running water starting from the wide end. Adding a teaspoon of baking soda to the boiling water also helps the membrane release from the shell.
Do you boil eggs in cold or hot water?
Both methods work. Boiling water start gives more predictable timing because cooking begins immediately — better when you want exact doneness. Cold water start is gentler on the shells (less cracking) and gives more even cooking. Use the toggle on the timer above to match your method.
How long do hard boiled eggs last in the fridge?
Up to 7 days if stored in the shell in a sealed container. Peeled hard boiled eggs should be eaten within 2 days. Always refrigerate within 2 hours of cooking.
Can I hard boil eggs in an air fryer or microwave?
Yes, but timing differs from stovetop. Air fryer: about 15 minutes at 270°F (130°C) for hard boiled. Microwave: not recommended for whole eggs in shells — they can explode. Stick with the timer above for boiling-water cooking, which is the most reliable method.
What’s the difference between hard boiled and well done?
“Hard boiled” (10 min) gives a fully-set but still tender yolk that’s pleasant to eat plain. “Well done” (12 min) is firmer and slightly chalky — better when you need the yolk to hold its shape, like in deviled eggs or sliced for salads.