How do I know when boiled brats are done?

To begin, bring the water to a boil over medium heat. After adding the brats, bring the temperature down to a low setting. To get the internal temperature of the brats up to 160 degrees Fahrenheit, boil them for around ten minutes. If you like your sausages well done, cook them until the internal temperature reaches 180 degrees Fahrenheit. This will take around an hour.