Open your beer bottle and pour it into your pot. (you can add a fresh can or if it is left over and flat that is fine too)
Open your vegetable steamer basket and lower inside your pot.
Put brats inside and close lid. Close steam valve and set to manual, pressure, high for 5 minutes. (if yours are really large they may need more time but this should be just right)
Do a quick release. Since this is pork always make sure to check that they are cooked completely to 160F.
Put in a bun and add sauerkraut and mustard on top...and other favorite toppings.
Optional - If you want to crisp outsides you can put into an air fryer at 400 degrees for a few minutes, under the broiler, or sear outsides in a pan on your stovetop.
Video
Notes
Frozen Brats in Instant Pot
If your brats are frozen, separate them from one another and set inside basket with liquid in bottom as directed above. Increase timing by 1 minute, so 6 minutes high pressure.