Do eggs have to be cold?

It's not necessary for eggs to be cold when you cook them. However, there are some reasons why it's often recommended to use cold eggs:

* Easier to separate: Cold egg whites hold their shape better, making it easier to separate them from the yolks without breaking them.

* Better for meringue: Cold egg whites create a firmer, more stable foam for meringues.

* Slightly easier to peel: Some people believe that cold eggs are slightly easier to peel after hard boiling.

However, you can cook eggs directly from the refrigerator without any major issues. The temperature difference won't significantly impact the cooking process.

Ultimately, whether you use cold or room temperature eggs is a matter of personal preference and the specific recipe you're making.