how many minutes per pound to cook a tri tip roast
Step 6. Cook for 12 to 25 minutes per pound of tri-tip, depending on how well-done you want the roast. When the internal temperature reaches 125 degrees, the roast is rare.A temperature between 130 to 135 degrees is medium rare, with a 145-degree internal temperature denoting a well-done roast.tep 5. Put the roast in the center of the oven for 18 to 30 minutes per pound of roast. For a rare roast, internal temperature should be 125 degrees, medium ranges from 130 to 130 degrees, and well-done registers 145 degrees.