Egg Cooker Altitude Adjuster
Get the perfect soft-boiled egg at any elevation. Adjusts boiling time based on your city's altitude.
Your data stays private - we don't store your calculations
Why Altitude Affects Cooking
At higher elevations, atmospheric pressure is lower, causing water to boil at a lower temperature. Lower temperature = slower cooking = longer cook times for the same results.
Water Boiling Points by Altitude
| Location | Elevation | Boiling Point |
|---|---|---|
| Sea Level | 0 ft | 212°F (100°C) |
| Denver | 5,280 ft | 202°F (94°C) |
| Mexico City | 7,350 ft | 198°F (92°C) |
| La Paz | 11,942 ft | 189°F (87°C) |
🥚
Soft-Boiled
Runny yolk, set white
6-7 min at sea level
🍳
Medium (Jammy)
Thick, creamy yolk
7-8 min at sea level
🥚
Hard-Boiled
Fully set yolk
10-12 min at sea level
🎯 High-Altitude Tips
Room Temp Eggs
Let eggs sit out 15-20 min before cooking to reduce thermal shock.
Use Steam
A steamer insert produces more consistent results than immersion.
Pressure Cooker
Eliminates altitude issues—same time whether Miami or La Paz.
Ice Bath Critical
Stops carryover cooking. Even more important at altitude!
💡 Rule of Thumb
Add ~3% more cooking time for every 1,000 feet of elevation. At 5,000 ft, that's about 15% longer.
Frequently Asked Questions
Why do eggs take longer to cook at high altitude?
At high altitude, atmospheric pressure is lower, causing water to boil at a lower temperature. At sea level, water boils at 212°F (100°C), but in Denver (5,280 ft), it boils at about 202°F (94°C). The lower cooking temperature means eggs need more time to reach the same doneness.
How much should I adjust cooking time for altitude?
A general rule is to add approximately 3% more cooking time for every 1,000 feet of elevation. At 5,000 feet, that's about 15% longer—so a 6-minute soft-boiled egg becomes a 7-minute egg.
Does altitude affect all cooking the same way?
Altitude affects any cooking method that involves boiling or steam. It has minimal effect on baking (which involves dry heat) or pressure cooking (which artificially raises the boiling point). Deep frying is also largely unaffected.
What is the 'jammy' egg yolk consistency?
A 'jammy' yolk is the middle ground between runny and fully set—thick and gooey like jam but not liquid. It's achieved with a medium boil time (about 7-8 minutes at sea level) and is popular for ramen toppings and avocado toast.
Should I use cold or boiling water to start?
Both methods work. Starting cold (covering eggs with cold water, then bringing to boil) is more forgiving and reduces cracking. Starting with boiling water gives more precise timing but requires careful egg placement to prevent cracking from thermal shock.