Ensure grill grates are clean and greased. Preheat grill to medium / medium-low heat (300-350 degrees F).
Place brats over direct medium heat and rotate every 5 minutes or so. Let cook until the internal temperature reaches 160 degrees F. (approx. 18-24 minutes).
Low and Slow: when it comes to brats (bratwurst), if you cook them on high they have the tendency to burst or crack open which will leave you with dry, overcooked brats. I like getting an initial sear, but then it is low and slow!
Don't Pierce: don't pierce your grilled brats until after they rest for a bit - if you pierce them or cut into them took quickly all of the flavorful juices will come running out and your brats will dry out real quick.
Toasted Buns: feel free to put your brat buns on the grill (brush with a little melted butter first) for a minute or so!
Cooked vs. Uncooked Brats: whether you are cooking raw, uncooked brats or pre-cooked brats you will want to bring both up to an internal temperature of 160 degrees F. This generally takes the same amount of time, but the raw brats can take a bit longer.
Storage: store leftovers in an airtight container for up to 3 days.