For a large egg lowered carefully into already-boiling water, a useful starting point is about 6 minutes for a runny yolk, 7–8 minutes for a jammy yolk, and around 10 minutes for a fully firm center. Starting in hot water gives the timer a more repeatable starting point than heating the egg and water together.
Those times describe culinary texture rather than a food-safety guarantee. USDA lists 160°F/71.1°C as the safe minimum for eggs and advises cooking yolks and whites until firm. Pregnant people, older adults, young children, and people with weakened immune systems should avoid undercooked egg preparations unless an appropriate pasteurized egg product is used.
About 6 minutes gives a set white and runny yolk
At roughly six minutes, a large egg usually has a white that is structured enough to open or peel carefully while the center of the yolk remains fluid. This is the familiar soft-boiled texture used for toast, ramen, and dishes where the yolk acts almost like a sauce.
An egg at room temperature may advance slightly faster, while one taken straight from a very cold refrigerator can need a little more time. The important part is a steady gentle boil rather than violent bubbling that bangs eggs against the pan.
7–8 minutes moves into the jammy zone
At seven minutes, the yolk thickens from the outside while keeping a soft center. By about eight minutes, most of it is set but still glossy, creamy, and easy to spread. This texture slices more cleanly than a six-minute egg without becoming dry.
The difference between seven and eight minutes seems small, but it is large inside an egg because heat is moving from the white toward the center. A timer and a repeatable method matter more than trying to judge doneness by looking at the shell.
Around 10 minutes is enough for a hard-cooked center
At about ten minutes, a large egg is generally firm through the yolk. Keeping it boiling much longer does not create a useful extra stage once it is fully cooked; it mainly dries the yolk, toughens the white, and makes the familiar green-gray ring around the yolk more likely.
When time is up, move the eggs to very cold water. Rapid cooling slows carryover cooking so that a six-, eight-, or ten-minute target actually means something. Eggs left sitting in hot water keep cooking even after the burner is off.
Egg size changes the timing
The reference works best for large eggs. Medium eggs contain less mass and can reach the same texture somewhat sooner, while extra-large eggs need longer. A practical first adjustment is about 30 seconds in either direction, followed by correction based on your own results.
Batch size matters too. Dropping six refrigerator-cold eggs into a small pan cools the water more than adding one or two. For a larger batch, use enough water and pan capacity for temperature to recover quickly.
Altitude and starting method matter as well
At higher altitude, water boils at a lower temperature, so eggs need more time to reach the same degree of doneness. And if you begin with eggs in cold water, you cannot transfer timings directly from a method that counts from already-boiling water; they are different systems.
The practical rule: choose one method, use similarly sized eggs, start the timer at the same point every time, and cool them when finished. For texture, think 6 minutes runny, 7–8 jammy, and 10 firm. For conservative food-safety guidance, cook eggs fully or use pasteurized eggs when serving a soft yolk.
These quantities are a starting point rather than a rigid rule. Food size, recipe, appetite, side dishes, and cooking method all change the result. If you make the dish regularly, note what worked in your kitchen: your own repeatable reference is often more useful than one number applied to every situation.
These quantities are a starting point rather than a rigid rule. Food size, recipe, appetite, side dishes, and cooking method all change the result. If you make the dish regularly, note what worked in your kitchen: your own repeatable reference is often more useful than one number applied to every situation.
Frequently asked questions
How long for a runny yolk?
About 6 minutes for a large egg lowered into boiling water, with adjustments for size and starting temperature.
How long for a jammy yolk?
Roughly 7–8 minutes usually gives a thick, creamy center.
Are runny eggs safe?
USDA recommends cooking eggs fully; higher-risk people should use pasteurized eggs if serving an undercooked preparation.
Sources
- USDA FSIS — Safe Minimum Internal Temperature Chart — USDA lists 160°F/71.1°C as the safe minimum internal temperature for eggs.
- USDA FSIS — Shell Eggs from Farm to Table — Official guidance on safe egg cooking, handling and refrigeration.
- BBC Good Food — How to boil an egg — Practical timing reference for large eggs lowered into boiling water, with different yolk textures.