Here’s the sneaky pro tip. After you pull that tenderloin off the grill or out of the oven at 145°F, let it rest for at least three minutes. Three minutes. This isn’t a suggestion; it’s a rule.
Why? Because the temperature will carry over and climb another five to ten degrees as it sits. Your thermometer says 145°F now, but resting pushes it safely past 150°F—while the juices stay locked inside. It’s like when your mom tells you to let the cake cool. She’s always right. Don’t argue with mom.
Pro tip: If you slice into it immediately, you’ll see a puddle of “pork tears.” Those tears are where all the flavor just ran away. Don’t make the pork cry. Let it rest.
How to Not Screw It Up (The Equipment Corner)
You need a good instant-read thermometer. Not a vague guess, not the “poke test” where you wiggle your finger. Nope. Buy a digital thermometer. They cost about the same as a fancy coffee. Worth it.
Insert it into the thickest part of the tenderloin. Avoid hitting bone (if it has one) or fat. You’re looking for that sweet, central spot. Wait two seconds. Done. You are now a pork scientist. Congratulations.
And don’t forget: Pork tenderloin is lean. It’s not a pork shoulder. It dries out faster than a TikTok dance trend. So 145°F isn’t just safe—it’s your only hope for tenderness. Go higher, and you’re hosting a sad, leathery dinner party.