Slow cooker baked potatoes take 4–5 hours on High or 7–8 hours on Low, depending on size and moisture.
Craving that fluffy, tender center with a thin, salty skin but don’t want to heat the kitchen? The slow cooker delivers. You set it, walk away, and come back to spuds with a texture that rivals oven results. The catch: time changes with size, batch load, and your particular cooker. Here’s a clear guide that nails the window and helps you hit the same texture each time.
Slow Cooker Potato Time At A Glance
Use this chart as your baseline. Times assume scrubbed russets, dried well, pierced, brushed with oil, and salted. No foil. Place on the crock in a single layer for the fastest finish.
Potato Size (Each) | Low | High |
---|---|---|
Small (5–6 oz / 140–170 g) | 6–7 hours | 3.5–4 hours |
Medium (7–9 oz / 200–255 g) | 7–8 hours | 4–5 hours |
Large (10–12 oz / 285–340 g) | 8–9 hours | 5–6 hours |
Jumbo (13–16 oz / 370–455 g) | 9–10 hours | 6–7 hours |
Why The Time Range Exists
Not all slow cookers run the same. Older models tend to heat gently; newer ones often run hotter. Add lid fit, altitude, and how often you peek, and the finish time moves a bit. The starch level of a russet batch also shifts from bag to bag, which changes how quickly the flesh softens. That’s why you’ll see a one-hour band in each row above.
Close Variant: Crockpot Potato Cook Time With Tips
Lock in a repeatable result with this simple approach. It works for weeknights and for a crowd, and it keeps the skin supple instead of leathery.
Prep For Even Cooking
- Scrub and dry well. Surface water delays browning on the skin.
- Stab each one with a fork 6–8 times around the center to vent steam.
- Rub with 1–2 teaspoons neutral oil per pound and sprinkle with kosher salt.
- Skip foil. It holds moisture against the surface and blocks dry heat contact.
Set Up The Cooker
- Single layer when possible. A second layer adds 30–45 minutes.
- Use High for a faster dinner window; use Low when you’re out for the day.
- Resist lifting the lid during the first half. Each lift can add 10–20 minutes.
Doneness Tests That Never Fail
- Skewer glide: a thin skewer slides through the center with almost no drag.
- Squeeze test: a slight press meets soft, even give from end to end.
- Internal temp for fluffy texture: 205–212°F (96–100°C) in the core.
Seasoning And Skin Texture
Oil and salt give a light crust and help the skin stay pleasant, not soggy. For a bolder crust, toss the finished potatoes under a hot broiler for 3–6 minutes per side on a rack. A quick brush of melted butter at that point adds sheen and boosts flavor.
Food Safety And Holding
Keep the lid on until you serve. When guests run late, switch to Warm for up to two hours and keep the lid closed. Avoid wrapping hot potatoes in foil and letting them sit out; low-oxygen pockets can create conditions that favor toxin growth. See the CDC botulism guidance for more detail. Slow cooker basics for safe use are also laid out in the USDA slow cooker safety.
Batch Size, Layers, And Water Content
Four medium russets in a single layer finish on the short end of the range. Eight in two layers push to the long end. Waxy potatoes hold more water and stay dense longer; russets dry out inside, which gives that fluffy bite. Old spuds with sprouts often bake faster due to starch changes, though the flavor can be dull. Fresh, heavy russets track to the times in the chart.
Step-By-Step Method
Ingredients
- 4 medium russet potatoes (7–9 oz each)
- 1–2 tablespoons neutral oil
- Kosher salt and pepper
- Butter or sour cream for serving
Method
- Scrub, dry, and poke with a fork.
- Rub with oil and salt.
- Place in the crock in a single layer. No added water.
- Cook on High for 4–5 hours or on Low for 7–8 hours.
- Check one at the early mark; use the skewer test. Continue until tender.
- For a crisper skin, broil briefly on a rack, then brush with butter.
Toppings And Fillings That Shine
Keep the base hot and fluffy, then add contrast. Sharp cheddar, scallions, and pepper hit the classic note. Greek yogurt brings tang with less fat than sour cream. Pulled chicken, chili, or a spoon of beans turns a side into dinner. Add crunch with toasted panko, fried shallots, or bacon bits. A swipe of pesto or chimichurri wakes up the mild starch.
Common Problems And Fixes
Skin Feels Damp
The lid traps steam. Finish under a broiler or in a dry oven at 450°F for a few minutes. Next time, use a rack insert to lift the spuds off the crock bottom.
Centers Feel Firm
Give it more time. If you stacked layers, rotate the top ones to the bottom. Run on High for the last hour to push through.
Flavor Tastes Flat
Salt the skin well before cooking. Then season again after you cut them open. A dab of butter or olive oil helps carry flavors across the crumb.
Make-Ahead, Storage, And Reheat
Cook a batch on your weekend prep day. Chill within two hours: split lengthwise, cool on a rack for 10–15 minutes, then pack in shallow containers. Store up to four days in the fridge. For the freezer, scoop the flesh, mash with butter and a pinch of salt, then pack in portions; thaw in the fridge and reheat in a dish, or pipe back into skins for twice-baked style.
Reheat Options
- Oven: 400°F for 15–20 minutes for whole, or 10–12 minutes for halves.
- Microwave: 60–90 seconds per potato, turning once; finish in a hot oven for skin texture.
- Air fryer: 375°F for 6–10 minutes for a crisp jacket.
Time Adjustments For Other Potato Types
Russets bake into that fluffy profile many people want. Yukon Golds hold a creamy bite and run slightly shorter. Small reds stay firm longer and fit best as “baked” halves with toppings. Sweet potatoes follow similar ranges by weight but often finish 15–30 minutes sooner on High due to higher sugar content. The skewer test still rules.
Capacity Planning For A Crowd
Use this second chart to plan a party or a bar night. Times assume medium russets, oiled and salted, packed snugly. A second unit beats cramming one to the brim.
Potatoes In Cooker | Low (Single/Double Layer) | High (Single/Double Layer) |
---|---|---|
4–5 (4–5 qt) | 7–8 h / 8–9 h | 4–5 h / 5–6 h |
6–8 (6–7 qt) | 7.5–8.5 h / 9–10 h | 4.5–5.5 h / 6–7 h |
10–12 (8–10 qt) | 8–9 h / 9.5–10.5 h | 5–6 h / 6.5–7.5 h |
Oven Versus Slow Cooker
The slow method wins when you want a hands-off window and gentle, even heat. An oven still gives the driest jacket and lightest interior at 425°F for about 45–60 minutes for medium russets. A hybrid path works well: cook in the crock during the day, then blast under a broiler or in a hot oven for a few minutes right before serving.
Flavor Boosters People Love
- Garlic butter with parsley and lemon zest.
- Chili crisp with scallions.
- Herb salt with olive oil.
- Ranch powder whisked into Greek yogurt.
- Smoked paprika with a drizzle of honey on sweet potatoes.
Quick Reference For Weeknights
Medium russets, single layer, High: check at 4 hours. Large russets, single layer, High: check at 5 hours. Two layers add about 45 minutes. Need dinner sooner? Split potatoes lengthwise before cooking, oil and salt the cut sides, and stand them cut-side up on a rack; the halves tend to finish 30–40 minutes sooner.
Tools That Help Consistency
- Instant-read thermometer for the 205–212°F target.
- Wire rack insert to lift spuds off the base.
- Half-sheet pan for the broiler finish.
- Heat-safe gloves for clean squeezes during the tenderness check.
Printable Method Card
Slow Cooker “Baked” Potatoes
Yield: 4 servings | Active Time: 10 minutes | Total Time: 4–5 hours on High or 7–8 hours on Low
- Prep russets: scrub, dry, poke holes, oil, and salt.
- Arrange in a single layer. No water, no foil.
- Cook: High 4–5 hours (medium) or Low 7–8 hours.
- Test with a skewer. Finish under a broiler for a crisper jacket if you like.
- Serve hot with butter, salt, and your favorite toppings.
Final Taste Tweaks
Right before serving, slice lengthwise and give the sides a gentle squeeze to open a seam. Toss in a pat of butter and a pinch of flaky salt. Add a twist of black pepper and a splash of hot sauce if you crave heat. That quick move lifts the aroma and makes the crumb feel lighter.
Altitude And Model Differences
At high elevations, water simmers at a lower temperature. That simmer slows softening in the center. If you live above 3,000 feet, add 20–30 extra minutes on High or an hour on Low. Model quirks matter. Some inserts run hotter along the perimeter. Rotate at halfway mark when you notice uneven softening.