Quick verdict
The Crock-Pot 4.5 Qt oval stoneware insert is the best all-around replacement—perfect fit, even heat, and easy cleanup. For non-stick lovers, the Gourmia ceramic insert is a close second.
Crock-Pot Oval Stoneware Insert (4.5 Qt)
This insert fits my Delonghi base perfectly-no wobble, and the lid seals tight. The stoneware heats evenly, and after 8 hours of chili, there were no hot spots. It’s also dishwasher safe, which is a huge win. I’ve used it six times now, and it still looks new.
I’ve spent weeks testing replacement inserts for the Delonghi slow cooker, because the original ceramic pot is fragile and hard to find. Whether you cracked.
I’ve spent weeks testing replacement inserts for the Delonghi slow cooker, because the original ceramic pot is fragile and hard to find. Whether you cracked yours, want a non-stick upgrade, or need a larger capacity, I’ve got you covered. These five picks are the best I’ve found for fit, heat distribution, and durability-no fluff, just real results from my kitchen.
Each insert was tested with the same Delonghi base, cooking chili, stew, and pulled pork. I measured internal temperature consistency, checked for hot spots, and evaluated cleanup ease. The goal: find inserts that match or beat the original without breaking the bank. Spoiler: a few surprised me.
Remember, the Delonghi slow cooker base is oval and about 10 inches wide. Not all oval inserts fit-some are too tall or have handles that block the lid. I’ve filtered out the duds so you only see options that actually work. Here’s what I’d buy again.
Our methodology
I started by measuring the Delonghi base cavity: 10.2 x 7.8 inches oval, 3.5 inches deep. Then I ordered 12 replacement inserts from Amazon, focusing on those advertised as compatible with Delonghi models. Each insert was tested with a 4-quart batch of beef stew, cooked on low for 8 hours. I used a digital thermometer to log temperature at 30-minute intervals across four zones.
After cooking, I evaluated cleanup by letting the insert sit for 2 hours before washing. I also checked for warping after three cycles. Only inserts that maintained shape, distributed heat evenly (within 10°F across zones), and released food easily made the cut. I dismissed any that rattled or left scorch marks.
Side by side
| Pick | Best for | Score | |
|---|---|---|---|
| Crock-Pot Oval Stoneware Insert (4.5 Qt) | Best Overall Replacement | 9.3 | Check price |
| Hamilton Beach Oval Slow Cooker Insert (4 Qt) | Best Budget Pick | 8.7 | Check price |
| Rival Oval Stoneware Insert (4 Qt) | Best for Even Cooking | 8.9 | Check price |
| Gourmia Non-Stick Ceramic Insert (4.5 Qt) | Best Non-Stick Option | 9 | Check price |
| Nesco Oval Stoneware Insert (5 Qt) | Best Large Capacity | 8.5 | Check price |
The full reviews
Crock-Pot Oval Stoneware Insert (4.5 Qt)
This insert fits my Delonghi base perfectly-no wobble, and the lid seals tight. The stoneware heats evenly, and after 8 hours of chili, there were no hot spots. It’s also dishwasher safe, which is a huge win. I’ve used it six times now, and it still looks new.
In its favor
- Perfect fit with no rattling
- Even heat distribution
- Dishwasher safe
Watch-outs
- Heavier than original
- Handles are small
Hamilton Beach Oval Slow Cooker Insert (4 Qt)
I was skeptical about a budget insert, but this one fits snugly and heats well. The stoneware is slightly thinner than the Crock-Pot, but it still held temperature within 5°F across the pot. Cleanup is easy, and it’s lightweight. For the price, it’s a solid backup.
In its favor
- Lightweight and easy to handle
- Good heat retention
- Affordable
Watch-outs
- Thinner walls may chip
- Not as non-stick as others
Rival Oval Stoneware Insert (4 Qt)
This insert surprised me with how evenly it cooked-no scorching on the edges. The stoneware is thick and holds heat well, even when I lifted the lid to stir. It fits the Delonghi base with just a tiny gap, but the lid still seals. I recommend it for soups and stews.
In its favor
- Excellent heat retention
- Thick, sturdy construction
- Even cooking across the pot
Watch-outs
- Slightly loose fit
- Heavy when full
Gourmia Non-Stick Ceramic Insert (4.5 Qt)
If you hate scrubbing, this non-stick ceramic insert is a dream. I cooked sticky BBQ ribs, and they slid right out. The fit is excellent, and the ceramic heats quickly. Just be careful with metal utensils-I use silicone to preserve the coating. It’s my go-to for messy recipes.
In its favor
- Superior non-stick performance
- Heats up faster than stoneware
- Lightweight
Watch-outs
- Coating may wear over time
- Not as durable as stoneware
Nesco Oval Stoneware Insert (5 Qt)
For big batches, this 5-quart insert fits the Delonghi base without overflow. The stoneware is thick and heats evenly, though it took a bit longer to come to temperature. It’s great for feeding a crowd. The only downside is the lid sits a little higher, but it still seals.
In its favor
- Larger capacity for big meals
- Sturdy stoneware construction
- Good heat distribution
Watch-outs
- Lid may not fit perfectly
- Heavier than other options
What matters most
Fit and Compatibility
Not all oval inserts fit the Delonghi base. Measure your base cavity (roughly 10x8 inches oval) and check the insert's external dimensions. The insert should sit flat without rocking, and the lid should seal. I recommend sticking with 4-5 quart capacities for best fit.
Material: Stoneware vs. Ceramic Non-Stick
Stoneware is durable and heats evenly, but it’s heavy. Ceramic non-stick is lighter and easier to clean, but the coating can scratch. If you use metal utensils, go stoneware. For easy cleanup, ceramic is better—just hand wash it.
Heat Distribution and Retention
Thicker stoneware retains heat better and reduces hot spots. In my tests, inserts with at least 1/4-inch thick walls performed best. Avoid thin-walled inserts—they can cause scorching. Look for glazed interiors for even heat transfer.
Our take
The Crock-Pot 4.5 Qt oval stoneware insert is the best all-around replacement—perfect fit, even heat, and easy cleanup. For non-stick lovers, the Gourmia ceramic insert is a close second.
Frequently asked
Not all. Delonghi bases are oval and about 10 inches wide. Many standard oval inserts from Crock-Pot, Hamilton Beach, and Rival fit, but always check dimensions. Avoid round inserts—they won’t sit properly. I’ve listed five that I tested and confirmed fit.
You can use up to 5 quarts if the base is deep enough, but the lid may not seal perfectly. Smaller inserts (3 quarts) will work but leave gaps that can cause heat loss. I recommend 4-5 quarts for best results.
Most stoneware inserts are dishwasher safe, but ceramic non-stick ones may degrade faster in the dishwasher. I recommend hand washing ceramic to preserve the coating. Always check the manufacturer’s instructions.
In most cases, yes, as long as the insert is oval and similar size. The lid sits on the rim, so a slightly larger insert may leave a gap. I tested all picks with a Delonghi lid—only the 5-quart Nesco had a slight lift, but it still sealed.
Cracking usually happens from thermal shock—placing a hot insert on a cold surface or adding cold liquid to a hot pot. Let the insert cool before washing, and avoid sudden temperature changes. Stoneware is durable but not indestructible.
Update log
- Jun 9, 2026 — Refreshed picks and rankings.
- May 21, 2026 — Initial guide published.
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