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Using 3 different bowls can help you keep the egg whites separate from the yolks. Choose a glass or metal bowl to collect the egg whites. Then, select a deep glass or metal mixing bowl to beat the egg whites in. Also, select a third container to hold the yolks. If any yolk gets in with the egg whites, it can ruin them and you will have to start over. Avoid using plastic to store egg whites. Plastic holds onto oil, so even clean plastic can ruin your egg whites. Before moving the egg white, check it over for yolk. A little bit of yolk can ruin an entire batch of egg whites. Pour the egg white out of the glass or metal holding bowl. Then, repeat the process from the beginning with your remaining eggs. Keeping the egg white in a separate holding bowl prevents the mixing bowl's contents from being tainted if a yolk breaks.
Set out 3 different bowls to hold the eggs. Transfer the egg white to your mixing bowl.