Boneless Pork Loin Roast Sous Vide Recipe: Ultra-Tender, Juice-Packed Perfection

This boneless pork loin roast sous vide recipe delivers restaurant-quality tenderness with foolproof precision—no more dry, overcooked pork. 🔥 After years of testing, I've perfected the technique to guarantee juicy, melt-in-your-mouth results every time, whether you're cooking for a special dinner or meal prepping for the week.

The secret lies in the precise temperature control of sous vide cooking, which keeps the meat incredibly tender while maintaining perfect doneness.

You'll start with a simple seasoning blend, then vacuum-seal the pork before cooking it at 145°F for 24 hours—this long, slow process breaks down the muscle fibers for maximum tenderness. The finishing sear adds that coveted crust without drying out the interior.

What you'll end up with is a juice-packed pork roast that slices effortlessly and stays moist even when reheated. The exterior gets beautifully caramelized during the final sear, while the inside remains silky and rich.

This method transforms a simple cut of pork into something truly impressive, worthy of any dinner table.

Pair it with roasted root vegetables, garlic mashed potatoes, or a fresh herb salad for a complete meal. The beauty of sous vide is that it lets you focus on perfecting the side dishes while the pork does all the work. Let's get started!

Ingredients for boneless pork loin roast recipe sous vide

Restaurant-quality pork starts with these precision ingredients—simple but game-changing for sous vide perfection.

The pork loin is non-negotiable here. Center-cut is the gold standard—it's leaner in the middle, so it cooks more evenly without drying out. Costco or Whole Foods have excellent quality, but any well-marbled cut works. Avoid anything with excessive fat caps. For the seasoning, Diamond Crystal kosher saltTrader Joe's sells it in those little jars, but the stems are easier to remove if you grab a bunch from the grocery store produce section. If you're prepping ahead, store the pork and seasonings separately in the fridge until ready to seal.

No vacuum sealer? Zip-top bags with the water displacement method works—just boil water, submerge the bag, and let it cool. For the garlic, smashing the cloves releases more flavor than mincing. Running out of thyme? Dried thyme at one-third the amount is fine, but fresh is worth it. The olive oil and butter for the sear should be room temperature—cold butter won't brown properly. Pro tip: Pat the pork dry before seasoning—moisture creates steam and prevents good browning. If you're meal prepping, divide the cooked roast into portions before sealing for easy reheating later.

Sous vide magic happens at 145°F for 24 hours—set it and forget it. The roast keeps perfectly in the bag in the fridge for 2 days before searing. For the final step, heat your cast-iron on medium-high until it's screaming hot—this creates that perfect crust. Reheat any leftovers in the sous vide bath at 165°F for 1 hour to maintain tenderness. Stored properly, the cooked roast stays juicy for 4-5 days in the fridge or 3 months frozen. The seared crust? Best eaten fresh, but the interior stays incredible reheated.

Step-by-step instructions for sous vide pork loin roast

Here's how to transform a simple pork loin into melt-in-your-mouth perfection using sous vide.

Pat the 2 lb boneless pork loin roast completely dry with paper towels—this ensures maximum crispiness later. Place it on a cutting board and use a sharp knife to create a shallow crosshatch pattern on the surface, about ¼-inch deep. This creates more surface area for seasoning and renders fat beautifully.

In a small bowl, combine the 1.5 tbsp kosher salt and 1 tbsp freshly ground black pepper. Rub this mixture all over the pork, pressing firmly into the crosshatch cuts. The salt will begin drawing out moisture, which is why we'll vacuum-seal it immediately—this preserves all those juices during cooking. Let it sit at room temperature for 15 minutes while you prepare the aromatics.

While the pork rests, smash the 6 cloves garlic with the flat side of your knife to release their oils. In a separate bowl, combine the smashed garlic with the 0.5 cup fresh thyme leaves and 1 tbsp extra-virgin olive oil. Use a fork to mash everything into a coarse paste—this ensures the flavors infuse deeply into the meat during the long cook.

Spread this herb-garlic paste evenly over the seasoned pork, pressing it into the crosshatch cuts. The thyme will add earthy depth while the garlic provides that signature savory punch. Wrap the pork tightly in plastic wrap and refrigerate for 10 minutes—this chills it slightly, making it easier to handle during vacuum sealing.

Remove the pork from the fridge and place it in a vacuum-seal bag. Seal it completely, removing as much air as possible—this prevents surface drying and ensures even cooking. Submerge the sealed bag in your sous vide precision circulator filled with water and set the temperature to 140°F for 12 hours. This low-and-slow approach transforms the pork into silky tenderness while maintaining perfect moisture.

Here's the thing—don't rush this step. The long cook time breaks down connective tissue without overcooking the exterior. You'll know it's done when the internal temperature reaches 140°F and the meat feels tender when probed gently with a toothpick. The pork should pull apart easily but still hold its shape.

Remove the pork from the bag and pat it dry again with paper towels—this crucial step prevents steam from interfering with the sear. Heat the 12-inch cast-iron skillet over medium-high heat until it's screaming hot. Add 0.5 cup vegetable oil and 2 tbsp cold cubed butter, then let it shimmer for 2 minutes.

Using the tongs, carefully place the pork in the skillet. Sear for 3-4 minutes per side until it develops a deep golden-brown crust. The butter will foam and brown, creating a rich compound butter sauce in the pan. You want that crust—it's what gives sous vide meat its restaurant-quality finish. For extra flavor, spoon the hot oil and butter over the pork as it sears.