How Long to Sous Vide Beef Tenderloin for Perfect Results Every Time

Beef tenderloin is a prime cut of meat that’s perfect for special occasions. When cooked properly, it’s incredibly tender and juicy. Sous vide is a foolproof cooking method that helps you achieve tenderloin perfection every time. But exactly how long should you cook a beef tenderloin sous vide?

In this complete guide, I’ll cover everything you need to know about timing when cooking beef tenderloin sous vide including

• Recommended cooking times based on thickness
• How temperature impacts time
• Tips for monitoring doneness
• Ensuring food safety
• Finishing with a sear
• Serving suggestions

With the right time and temperature combo for sous vide, you’ll wow your guests with perfectly cooked, melt-in-your-mouth tenderloin at your next dinner party or holiday meal. Let’s get cooking!

Sous Vide Beef Tenderloin Cooking Times

The cooking time for beef tenderloin sous vide depends on the thickness of the meat. Follow these general time guidelines:

• 1-inch thick tenderloin: 1 – 1 1⁄2 hours
• 1 1⁄2 – 2 inches thick: 2 – 3 hours
• 2 1⁄2 – 3 inches thick: 3 – 4 hours

For a standard tenderloin roast around 2 inches thick, cook for 2 to 3 hours sous vide. Adjust the time down for thinner cuts or up for extra thick roasts.

Key Factors That Impact Timing

Two key factors impact how long to cook beef tenderloin sous vide:

1. Temperature

• Lower temps like 130°F require more time.
• Higher temps like 140°F speed up cooking.

For medium-rare doneness, cook at 132 – 135°F. For medium, increase the temp to 140°F and reduce time.

2. Thickness

• Thinner cuts cook faster (1 – 2 hours).
• Thicker roasts need more time (3 – 4 hours).

Consider the tenderloin’s dimensions when setting your timer.

How to Tell When It’s Done

Since sous vide cooking happens out of sight, here are tips for monitoring doneness:

• Use a digital meat thermometer to check internal temp.

• The meat should feel very firm yet still have a little “give” when pressed.

• Perform the “fork test” – a properly cooked tenderloin will be tender enough to cut through easily with the side of a fork.

• Check for your desired degree of doneness:

  • Rare: 120-129°F (bright red center)

  • Medium rare: 130-139°F (warm deep pink center)

  • Medium: 140-149°F (hot pink center)

Why Time and Temp Matter for Safety

Properly cooking tenderloin to an adequate internal temperature kills potentially harmful bacteria and pathogens.

While sous vide allows some flexibility with lower cooking temps, it’s still vital to monitor time and temp carefully to ensure food safety. Don’t eat undercooked meat.

Finishing With a Sear

Once cooked sous vide, it’s important to finish the tenderloin by searing briefly on all sides in a hot pan. This adds a flavorful crust and attractive browning.

Pat the meat dry before searing. Use high heat (like 450°F) for 1-2 minutes per side. Baste with herb butter or oil as you sear.

Serving Suggestions

Carve the seared beef tenderloin into slices or medallions. Pair it with:

• A red wine reduction or béarnaise sauce
• Sauteed mushrooms
• Roasted vegetables like asparagus, Brussels sprouts, or carrots
• Buttery mashed potatoes or potato gratin

And don’t forget to let the meat rest for 5-10 minutes before slicing to allow juices to redistribute.

Putting It All Together

1. Season 1-1/2 to 2 inch thick tenderloin all over with salt and pepper.

2. Seal in a sous vide bag, removing excess air.

3. Cook at 135°F for 2 to 3 hours based on thickness.

4. Check temperature to confirm medium-rare doneness.

5. Remove tenderloin from bag and pat dry; reserve juices.

6. Sear in a hot pan 1-2 mins per side until browned.

7. Let rest 5-10 minutes before slicing.

8. Serve drizzled with the cooking juices. Enjoy!

With the right timing, you’ll have perfect medium-rare tenderloin to celebrate any special meal.

The hands-off sous vide method helps you nail the ideal doneness consistently. Use thickness as your guide to setting the timer. Monitor temperature and use visual cues to test for completion.

Follow the safety guidelines of temperature and time. Then finish with an easy pan sear to add flavorful browning.

Now that you know exactly how long to cook beef tenderloin sous vide, you can serve this restaurant-worthy dish at home. Impress your guests with your sous vide skills!