Recipe

Crock Pot Pork Loin

A juicy, sliceable pork loin with a garlicky herb paste and a simple slow cooker gravy that tastes like you tried harder than you did.

By Matt Campbell

•

4.8

Thick slices of juicy pork loin arranged on a platter with spooned gravy and chopped parsley, with a slow cooker nearby on a kitchen counter

Jump to Recipe

Pork loin in the crock pot gets a bad rap because we have all had that version: dry, gray, and somehow both bland and salty at the same time. This one is the opposite. We are going for a pork loin that slices clean, stays juicy, and comes with a savory little gravy you can pour over everything like you own stock in mashed potatoes.

The trick is not complicated. We build flavor fast with a punchy herb-garlic paste, add a smart amount of liquid (enough for moisture and sauce, not so much you boil the meat), and we cook to temperature. You can do this on a weekday, you can do it half awake, and you can still serve something that makes people pause mid-bite and go, “Okay, wow.”

Raw pork loin on a cutting board surrounded by garlic, rosemary, thyme, paprika, onions, broth, and mustard on a bright kitchen counter

Why It Works

Juicy, sliceable meat: Pork loin is lean, so we keep the cook gentle and pull it right when it hits the safe temp.
Big flavor without weird ingredients: Garlic, herbs, mustard, and a little brown sugar for balance.
Built-in gravy: The cooking liquid turns into a quick, glossy sauce with a simple cornstarch slurry.
Flexible for dinner and leftovers: Slice it for plates, thin-slice it for sandwiches, or chop it into bowls and salads.

Pork loin nestled in a slow cooker with onions in broth, lid lifted to show steam

Pairs Well With

Storage Tips

How to Store and Reheat

Fridge: Cool leftovers, then store pork and gravy in separate airtight containers for up to 4 days. Keeping them separate helps the pork stay sliceable.
Freezer: Freeze sliced pork (with a little gravy spooned over it) for up to 2 months. Thaw overnight in the fridge.
Reheat (best method): Warm slices gently in a covered skillet with a splash of broth or gravy over low heat until just hot. This keeps it tender.
Microwave (still good): Use 50 percent power and add a spoonful of gravy on top. Pork loin hates aggressive heat.

Meal prep containers holding sliced pork loin with gravy on the side on a clean kitchen counter

Common Questions

Can I use pork tenderloin instead of pork loin?

You can, but treat it differently. Tenderloin is smaller and cooks faster. Use this same paste and sauce, but start checking for doneness much earlier. Pull tenderloin at 145°F and rest it, or it will dry out.

How long do I cook a pork loin in the crock pot?

Time depends on thickness and your slow cooker. As a general guide, cook on LOW for 3 to 5 hours or HIGH for 2 to 3 hours. Because some slow cookers run hot, start checking early: around 3 hours on LOW or 2 hours on HIGH. The real rule is temperature. Pull it when the thickest center hits 145°F, then rest.

Do I need to sear the pork loin first?

Not required, but it helps. Searing builds deeper, roasty flavor and better color. It is for flavor, not for “sealing in juices.” If you have 6 extra minutes, do it. If you do not, dinner will still be very good.

Why is my pork loin dry in the slow cooker?

Usually one of two things: it cooked too long, or it was a very lean loin and got overcooked. Use a thermometer and do not cook past 145°F to 150°F (it will coast up a bit while resting).

Can I cook it with potatoes and carrots?

Yes. Add chunked potatoes and carrots around the pork, and tuck them near the bottom where the liquid collects so they braise and steam properly. They do not need to be fully submerged (and adding a bunch of extra broth can dilute your gravy). Plan on the longer end of the LOW range for tender veggies.

What internal temperature is safe for pork loin?

The USDA safe internal temperature for whole cuts of pork is 145°F followed by a 3 minute rest. That rest time matters, and it also helps keep the juices where they belong.

Can I shred this for sandwiches?

At 145°F, pork loin is designed to slice, not shred. For sandwiches, thin-slice or chop it and spoon a little gravy on top. If you truly want shreddable pork, you can cook it longer until it pulls, but it will be less sliceable and can dry out more easily.

Matt Campbell

I have always had a huge passion for the culinary arts, people, working as a team, and so on. I wanted to pursue my love for cooking initially at Virginia Commonwealth University with a culinary arts degree; however, I instead decided to apply myself and acquire more practical skills. My end goal is to eventually open my own restaurant or similar establishment.

Kitchen Essentials

6 to 8 quart slow cooker
Large skillet (optional, for searing)
Instant-read thermometer
Tongs
Small bowl and whisk (for slurry)
Cutting board and sharp knife

I used to think crock pot pork was either a miracle or a mistake, with no in-between. The first time I made pork loin in a slow cooker on my own, I treated it like a shoulder. I walked away for hours, came back proud, and sliced into something that looked fine but chewed like a pencil eraser.

This version is what I wish I had then. It is calm, reliable, and it tastes like you actually paid attention. The little mustardy herb gravy is the part that gets me every time. One spoonful on the side of your plate turns “plain pork” into “second helping” pork.