Make sure your utensils are COMPLETELY clean and there is absolutely no oil or fat residue on your whisk or bowl. If you break your yolks as your separating the eggs the whites won’t whip up. Use a stainless steel or glass bowl and make sure it’s completely clean. Don’t use silicone or plastic bowls or utensils – even when they seem clean, there’s a possibility of oily residue that will make it hard for your eggs to whip up properly. Whipping egg whites takes time, so don’t be surprised if it takes a while for them to whip up.
Why didn’t my egg whites whip up? I’ve been beating them forever!
If your egg whites didn’t get fluffy it’s because there was oil or fat in your egg whites. Oil or fat is the enemy of whipping up meringues. Fat interferes with how the proteins in egg whites bond together to whip up. If you’re separating your egg whites by hand and there is fat on your hand, your whites might not whip up. If there is any oil or fat on your whisk or in your bowl, your egg whites won’t whip up.
