Bratwurst is a richly seasoned German sausage prepared from pork or a mixture of pork and veal. Bratwurst comes either raw or precooked. You may prepare precooked bratwurst in the microwave, but fresh bratwurst requires other methods -- parboiling and grilling, for example -- to ensure that it is fully cooked. Check the label to determine whether microwaving is an appropriate cooking method for the bratwurst you wish to serve.
Remove the brats from the packaging and arrange them in a dish safe for use in the microwave. Fill the dish with enough water to cover the sausages.
Cover the dish tightly with plastic wrap. Use a thin-bladed knife or sharp skewer to pierce the wrap in two or three places.
Cook the brats on the microwave's highest setting for approximately two minutes. Pull back the plastic wrap. Use tongs to turn each sausage over and cook on high for two more minutes, then recover the dish.
Remove the dish from the microwave and allow the bratwurst to stand, undisturbed, for at least two minutes before serving.