Yes, microwaves are good at defrosting. When done correctly, defrosting in the microwave is faster and more effective than using other methods, such as letting food thaw on the countertop or using hot water. Plus, it's a hands-off method that doesn't require any additional equipment. Here's how to defrost food in the microwave:
Place the food on a microwavable plate or dish. If it's still frozen in a solid block, slice or break it into smaller pieces to promote even thawing.
Cover the dish with a lid or damp paper towel to hold in moisture and prevent splattering.
Set the power level to 50% and cook for half of the time you would cook the food if it were fully thawed (for example, if you were going to cook chicken breasts for four minutes per side, you would cook them for two minutes per side while they're still frozen). Flip or rearrange the food halfway through cooking to ensure even thawing.
Let cooked food rest for one to two minutes before eating so that juices can redistribute evenly throughout meat; this also prevents burning your mouth on hot pockets of juice. If necessary, finish cooking according to your recipe's instructions once the food has thawed completely