What Temperature To Cook Beef Tenderloin

Beef tenderloin’s lean nature means the oven temperature you choose directly affects how tender the final roast turns out. If you want to know what temperature to cook beef tenderloin, the short answer is 425°F for the first 15 minutes, then 350°F until it reaches your target doneness.

That two-stage method gives you a nicely browned crust without drying out the meat. Below you’ll find exact numbers, times, and a simple step-by-step plan.

Why Temperature Matters More With Tenderloin

Tenderloin has very little fat compared to ribeye or chuck. Fat usually protects meat from heat, so without it, high heat can dry the roast fast.

That’s why most cooks start hot and then drop the temperature. The hot start browns the outside. The lower finish cooks the inside gently and evenly.

High heat alone = dry, gray edges
Low heat alone = pale crust, uneven cooking
Two-stage heat = brown crust, juicy center

Oven Temperatures For Every Doneness Level

Use a meat thermometer. Always. Guessing by color or time alone leads to overcooked beef, espcially with a lean cut like this.

Here are the internal temperatures you’re aiming for:

Rare: 120°F to 125°F
Medium rare: 130°F to 135°F
Medium: 140°F to 145°F
Medium well: 150°F to 155°F
Well done: 160°F and above

Pull the roast out of the oven 5 to 10 degrees below your target. Carryover cooking will raise the temp while it rests.

Step-By-Step Cooking Method

Take the tenderloin out of the fridge 30 to 45 minutes before cooking.
Pat it dry with paper towels. Moisture steams the meat instead of browning it.
Season generously with salt and pepper. You can add garlic powder or herbs too.
Preheat your oven to 425°F.
Sear the roast in a hot skillet for 2 to 3 minutes per side, if you have one. This step is optional but helps.
Place the roast on a rack in a roasting pan.
Cook at 425°F for 15 minutes.
Lower the oven to 350°F and continue cooking.
Check the internal temp after 15 more minutes, then every 5 to 10 minutes.
Remove when it hits 5 to 10 degrees below your target.
Rest for 10 to 15 minutes under loose foil.
Slice against the grain into thick rounds.

How Long Does It Take Per Pound?

Times vary by oven and roast size, but these estimates help you plan. These are for the 350°F stage after the initial sear.

2 to 3 pound roast: 20 to 30 minutes for medium rare
4 to 5 pound roast: 30 to 40 minutes for medium rare
6 pound roast: 40 to 50 minutes for medium rare

Add roughly 5 to 10 minutes for medium, and more for well done. But trust the thermometer over the clock every single time.

Common Mistakes To Avoid

Cooking Straight From The Fridge

A cold center cooks unevenly. The outside overcooks while the middle stays raw. Let it sit out first.

Skipping The Rest

If you cut it right away, the juices run out onto the board. Resting lets them redistribute back into the meat.

Using A Fixed Time And Ignoring The Thermometer

Every oven runs different. Yours might run 25 degrees hot or cold. A $15 thermometer saves a $60 roast.

Trimming Too Much Fat

Tenderloin is already lean. Leave the thin silverskin and any surface fat you can. It adds flavor and moisture.

Tips For A Better Roast

Tie the roast with kitchen twine so it cooks evenly.
Use a roasting rack so heat circulates underneath.
Let the roast come to room temp before it goes in.
Season a day ahead if you have time. Salt penetrates deeper.
Make a simple pan sauce from the drippings instead of heavy gravy.

Resting And Slicing

Rest the roast for 10 to 15 minutes. Tent it loosely with foil. Don’t wrap it tight or the crust goes soft.

Slice against the grain into 1/2 inch rounds. Against the grain means cutting perpendicular to the muscle fibers. This makes each bite more tender.

If you have leftovers, store them in the fridge for up to 3 days. Reheat gently at low heat so you don’t dry them out further.

Quick Recap

To sum it up: start at 425°F for 15 minutes, then drop to 350°F. Cook until the internal temp hits 130°F to 135°F for medium rare. Rest, then slice against the grain.

That’s the whole method. Get the temperature right and the rest is easy. Your tenderloin will come out tender, juicy, and evenly cooked every time you follow these steps.

What Temperature To Cook Beef Tenderloin