Instant Pot Pulled Pork

Bahan-bahan (6 porsi)

• 3 ½ to 4 pounds boneless pork shoulder roast
• 3 tablespoons pork rub (or use rub recipe below)
• 2 tablespoons olive oil
• ½ cup water
• 1 can root beer (or Dr. Pepper or cola)
• 2 cloves garlic (minced)
• 1 cup barbecue sauce (or to taste)