Set the Instant Pot on High Pressure
Set the Instant Pot heat level to "Normal"
Set the Instant Pot timer for 1 hour and 30 minutes
After the timer goes off
-Do NOTHING lol...The Instant Pot will switch the heat off and start the "Natural Pressure Release" process.
This is so important. If you just release the pressure you will shock the meat causing it to dry out.
The Instant Pot has a timer that will appear on the screen counting up in minutes. This allows you to be very exact with your cooking and repeating the process.
After the timer goes off and beeps, wait 30 minutes, or longer before moving on.
After 30 minutes, using a fork, lift the pressure release valve. Almost nothing will come out after 30 minutes of natural release. That's the point of natural release. The meat gets to just chill out and relax from the high pressure. This process is very much like resting a cooked piece of meat.
Place the brisket on a cutting board tented with aluminum foil and allow another 10 minutes to pass. Resting the meat...
Slice the brisket against the grain to ensure tenderness.If you slice with the grain the meat will be tough.Add fresh cracked black pepper before serving.