Egg Boil Time

Start the clock when the water boils again

Lower large eggs into already boiling water, wait until the pot returns to a full boil, then time 6 minutes for a soft yolk, 8 minutes for a jammy yolk, or 11 minutes for a firm hard-cooked yolk. Move the eggs into an ice bath when the timer ends so carryover heat does not push a jammy center to chalk.

Those three numbers are this tool’s sea-level starting points for large eggs. They describe yolk texture. They are not a USDA “safe because 11 minutes passed” certificate. FDA still tells consumers to cook eggs until yolks are firm when the goal is Salmonella control, and to cook egg dishes to 160 °F.

Soft and jammy eggs are preference textures. Serve them to healthy adults who accept the risk, or use pasteurized-in-shell eggs. Young children, pregnant people, older adults, and anyone with a weak immune system should get firm yolks or pasteurized products.

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How to use the egg boil calculator

Pick medium, large, or extra-large, then soft, jammy, or hard. Enter altitude in feet. The page adds 1 minute for each full 1,000 feet (floor of altitude ÷ 1000) because water boils cooler as air pressure drops. Albuquerque at about 5,000 feet adds 5 minutes. A coastal kitchen adds 0.

Use a pot deep enough that eggs stay covered. A crowded pot loses the boil for a long time; the timer still starts only when vigorous bubbling returns. Twelve extra-large eggs in a sauce pot may need two batches. The formula does not know your pot diameter.

Ice bath for at least several minutes. Crack and peel from the wide end, where the air cell sits, after a brief tap. FSIS notes that hard-cooked eggs should be refrigerated within 2 hours and used within 1 week. A dyed Easter egg that sat out through an afternoon hunt is past that clock if it was already cooked.

If you are packing lunchbox eggs, cook to hard, ice them, refrigerate, and use a cold pack. Soft yolks leak and sit in the temperature danger zone inside a warm backpack. FDA leftover egg dishes still reheat to 165 °F when you serve them hot the next day.

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Times by size, plus a Denver example

Base minutes: medium 5.5 / 7.5 / 10, large 6 / 8 / 11, extra-large 7 / 9 / 12 for soft / jammy / hard. Extra minutes = max(0, floor(altitudeFt ÷ 1000)). Displayed time = base + extra.

Sea-level large hard: 11 minutes. Large jammy at 5,280 feet: 8 + 5 = 13 minutes. Extra-large soft at 3,200 feet: 7 + 3 = 10 minutes. Medium hard at 0 feet: 10 minutes.

FSIS high-altitude cooking says hard-cooked eggs take longer because boiling water is cooler. Colorado State Extension’s example that a “3-minute” egg may need about 5 minutes near 5,000 feet is the same physics. Our +1 minute per 1,000 feet is a linear planning rule, not a lab curve for every city.

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Altitude additions for large eggs

Enter 0 in Denver and you will undercook. Floor(5280 ÷ 1000) = 5 extra minutes. A large hard egg becomes 16 minutes after the boil returns.

Oven roasting times for meat do not get this bump. FSIS says oven temperatures are not changed by altitude. Eggs in boiling water do, because the bath itself is cooler.

If your tap water is already simmering rather than rolling, you are not at the same temperature as a hard boil. Keep the heat high enough to maintain bubbles around the eggs.

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Salmonella, 160 °F dishes, and firm yolks

Clean, uncracked shells can still carry Salmonella Enteritidis. FDA requires untreated cartons to carry a safe-handling statement: keep eggs refrigerated, cook until yolks are firm, cook foods containing eggs thoroughly.

Casseroles, quiche, and other egg dishes: 160 °F by thermometer. Leftover egg dishes: reheat to 165 °F. Those numbers live on the FSIS temperature chart and FoodSafety.gov.

A 6 minute soft yolk is not 160 °F throughout. Do not pack soft-boiled eggs in a preschool lunch as a “protein win” unless you are using pasteurized eggs and a cold pack, and you accept that texture is still a preference cook.

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Ice bath, peeling, and the one-week window

The ice bath stops cooking and shrinks the egg slightly, which helps the membrane let go. Older eggs often peel more easily than very fresh ones because the air cell has grown.

FSIS: use hard-cooked eggs within 1 week. Refrigerate within 2 hours of cooking. Do not leave a bowl of peeled eggs on the counter through a party. The 2 hour / 1 hour (above 90 °F) leftover clock applies.

Store in the carton or a covered container at 40 °F or below. Do not freeze eggs in the shell.

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Steam, cold-start pots, and other clocks

Steaming often uses similar minute counts once steam is steady, but this widget is a boil-return timer. If you start eggs in cold water and bring the pot up together, you have already added uncounted heat. Do not stack that method on top of the 11 minute hard number.

Extra-large and medium eggs differ by mass. The 1 minute steps in the table are this site’s size offsets. A jumbo egg is outside the three sizes and will need more time than extra-large.

Brown versus white shells do not change minutes. Shell color is breed, not thickness you can count on.

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Accuracy limits

Starting temperature (fridge versus room), pot volume, and how many eggs you drop change how long the boil takes to return. The displayed minutes assume you waited for that return.

Altitude adjustment is a step function. 1,999 feet adds 1 minute, the same as 1,000 feet. Cities at 5,280 feet add 5, not 5.28.

Minutes never replace a 160 °F reading in an egg casserole, or FDA’s firm-yolk advice when you are cooking for someone at high risk. This is a texture timer plus an altitude bump.

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Carton dates, cracks, and what not to boil

FDA wants untreated shell eggs stored at 40 °F or below and used within about 3 weeks for quality. A cracked egg belongs in a cooked dish that reaches 160 °F, not in a 6 minute soft-boil where the white may still be loose and the crack has invited more surface bacteria into the interior.

Do not wash eggs just before boiling if they are already clean retail eggs. Washing can drive contamination through the pores. Farm eggs with visible dirt are a different handling problem; follow local guidance and cook those to firm yolks.

Pasteurized-in-shell eggs still take roughly the same minutes for texture because pasteurization did not hard-cook them. They are the better choice if you insist on a jammy yolk for a mixed-age table. Liquid pasteurized egg products are for scrambling and baking, not for this boil timer.

A dozen large hard eggs at sea level is still 11 minutes after the boil returns, not 11 minutes per egg. The formula does not multiply by count. At 4,400 feet, floor(4400/1000) = 4 extra minutes, so that dozen is 15 minutes. Ice all of them. Peel what you will eat in the next day and leave the rest in the shell in the fridge for the 1 week FSIS window.

Medium jammy at 2,100 feet is 7.5 + 2 = 9.5 minutes. Extra-large hard at sea level stays 12. If a yolk is still translucent after those times, cook one more minute and ice again rather than serving a runny center to a toddler.

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How it works

Start the timer when water is fully boiling again after the eggs go in. Ice bath stops carryover cooking and eases peeling.

Frequently asked questions

• Steam instead of boil?

  Steaming often needs similar times. Keep the ice bath either way.

Related calculators

References

1. FDA. What You Need to Know About Egg Safety
2. USDA FSIS. Shell Eggs from Farm to Table
3. USDA FSIS. Safe Minimum Internal Temperature Chart
4. USDA FSIS. High Altitude Cooking
5. Colorado State University Extension. High Elevation Food Preparation Guide
6. FoodSafety.gov. Safe minimum internal temperatures
7. USDA FSIS. Leftovers and Food Safety
8. USDA FSIS. Salmonella Questions and Answers