Beating Egg Whites to Soft Peaks
Egg whites are easily overbeaten. This is what they look like at what's called "soft-peak stage."
Egg whites that had been allowed to stand at room temperature for 30 minutes will beat up higher and faster than cold egg whites. To beat egg whites to a soft peak stage, use an electric mixer set on medium or a rotary beater. Scrape sides of the bowl frequently with a rubber spatula. You will want to continue to beat the eggs until the peaks will curl when the beaters are lifted from the mixture.