Kenji has done lots of testing about this, and his result was: flipping doesn't matter. I tend to trust him over old kitchen myths, although I cannot prove he's right.
It also doesn't matter because you're usually eating a burger with some kind of condiment or side.
Whether it's a mushroom/egg/tomato, coleslaw on the side, ketchup, tzatziki (lamb burger) or something else, most burgers will have juices enough to not make them dry.
You also might not want to eat 100% of the rendered fat from a burger. Some fat is good, but it's still a very high-calorie substance.
Whether it's a mushroom/egg/tomato, coleslaw on the side, ketchup, tzatziki (lamb burger) or something else, most burgers will have juices enough to not make them dry.
You also might not want to eat 100% of the rendered fat from a burger. Some fat is good, but it's still a very high-calorie substance.