Yes, it is generally safe to consume egg whites in cocktails when they are fresh and properly handled. When separating eggs, ensure that no egg yolk contaminates the egg whites, as this can increase the risk of bacterial contamination. Additionally, store egg whites properly in the refrigerator and use them within a reasonable time frame. NOTE: People with compromised immune systems, pregnant individuals, young children, and the elderly may be more susceptible to food borne pathogens, and may choose to avoid consuming raw eggs. I love cocktails with raw egg white (like this pisco sour and this pisco sour, and I have never known of anyone that had an issue!