<|im_start|>system
You are a helpful AI assistant.<|im_end|>
<|im_start|>user
How long does an egg need to boil to be perfectly hard boiled?<|im_end|>
<|im_start|>assistant
The ideal boiling time for a hard boiled egg is approximately 9 to 12 minutes. This will result in a fully cooked yolk and a firm egg white.

It is important to note that the exact boiling time may vary depending on factors such as egg size and altitude.<|im_end|>
<|im_start|>user
Are there other indicators that could help me determine that the egg may be perfectly hard-boiled?<|im_end|>
<|im_start|>assistant
Yes, there are a few indicators that can help you determine if an egg is perfectly hard-boiled. One way to check is by spinning the egg on a flat surface. A hard-boiled egg will spin smoothly and quickly, while an undercooked or raw egg will wobble or not spin at all. Additionally, you can also check the yolk for firmness by cutting it open after peeling. A fully cooked yolk will be solid and not runny.<|im_end|>