Is it safe to defrost ground beef in the microwave?

Only way I do it...

I use the defrost controls for ground beef on mine.

Safe? Yes, but there are problems doing it this way. My experience is that it is difficult to defrost without getting hot spots that precook in the process.

My method takes a little longer but works very well. I take the GB out of its store container and put it in a ziplock bag and remove the air. Then I put it on a cooling rack and set my small countertop fan blowing on it. You would be amazed how fast you can defrost stuff using this method.