Grilling burgers: flip once, or keep flipping? When grilling burgers I usually flip several times, but have recently been advised to cook forever on once side, flip once, cook and be done.

Is that the best way to do it?

How do you know when a burger is ready to flip?
I'm solidly in the flip as often as you want camp.  As long as it's not over (or under) cooked I find that you get better results flipping often. Plus you can rearrange things to make more room as you flip.

To tell how cooked a burger is poke it with a finger or something else that's not too sharp; just like a steak the more cooked it is the more firm it will be.  You just need to learn how "squishy" you like them.

Also, as fun as it is, don't press the whole burger into the grill!  All that happens is that the delicious juices are forced out.