Hollandaise Sauce Can Be Left Out For Hours
For those of us that are unaware, Hollandaise is often made by using raw or lightly cooked eggs, and whisked together using butter, lemon, and various seasonings depending on your chef. The problem here being that raw eggs may carry bacteria such as salmonella, and the only way to effectively kill this bacteria is by bringing the internal temperature to at least 160°F.
Anthony Bourdain once said “How about hollandaise sauce? Not for me. Bacteria love hollandaise. And nobody I know has ever made hollandaise to order.”