How to Clean and Maintain Your Westinghouse Slow Cooker

Westinghouse slow cookers are built to last, but they need regular cleaning to stay fresh and work well

Westinghouse slow cookers come in a few common models—most have a ceramic insert that sits inside a heating base, with a glass or metal lid on top. The ceramic insert is removable on nearly all of them, which makes cleaning much easier than you might think. The heating base itself should never go in the dishwasher or get submerged in water; only the insert and lid can take that kind of washing. Knowing which parts can handle water and which cannot is the first step to keeping your cooker in working order for years.

The good news is that Westinghouse slow cookers don't require special maintenance beyond what any slow cooker needs. A quick rinse after each use, a deeper clean once a month, and attention to odors will keep yours performing as it should. Most problems people run into—stuck-on food, lingering smells, discoloration—are preventable with a simple routine.

Key Takeaways

• Remove the ceramic insert and glass lid after each use and wash them by hand or in the dishwasher, but never submerge the heating base in water.
• Wipe the heating base with a damp cloth and dry it immediately to prevent mineral buildup and electrical damage.
• Soak stubborn, stuck-on food in warm water with baking soda for 15 to 20 minutes before scrubbing to avoid scratching the ceramic.
• Deodorize a slow cooker that holds food smells by running it empty with a mixture of water and white vinegar for one cycle, then rinsing thoroughly.
• Store your Westinghouse cooker with the insert removed and the base uncovered so air can circulate and prevent mold growth inside.

Cleaning the ceramic insert and glass lid after each use

The ceramic insert is the workhorse of your slow cooker, and it's also the easiest part to clean. As soon as you finish cooking, let the insert cool for a few minutes, then lift it out of the heating base. Most Westinghouse inserts can go straight into the dishwasher on the top rack, or you can hand-wash them with warm soapy water and a soft sponge. The glass lid can also go in the dishwasher or be washed by hand. Avoid scouring pads or abrasive scrubbers on the ceramic, because they can create tiny scratches that trap food particles and stains over time.

If food is still stuck to the ceramic after washing, don't scrape it with a knife or metal utensil. Instead, fill the insert with warm water and let it soak for 15 to 20 minutes, then use a soft brush or cloth to gently lift the food away. For really stubborn spots, add a tablespoon of baking soda to the soaking water—it's mildly abrasive but won't damage the glaze. Rinse well and dry with a soft cloth before putting the insert back into the base.

Caring for the heating base and preventing water damage

The heating base is where the electrical components live, so water is its enemy. Never submerge the base in water, and never run it through the dishwasher. Instead, unplug it from the wall, wait for it to cool completely, and wipe the outside with a damp cloth. Pay special attention to the seams where the base meets the top rim—food splatters and condensation can collect there. Use a soft cloth or an old toothbrush to gently clean those crevices, then dry everything immediately with a clean, dry cloth.

If water does get inside the base—for example, if you accidentally splash it while cleaning nearby—unplug the cooker and let it sit in a warm, dry place for at least 24 hours before plugging it back in. Do not try to use it while it's wet. If you notice any discoloration, corrosion, or a burning smell when you plug it back in, stop using it and contact Westinghouse customer service, because internal damage may have occurred.

Removing stains and discoloration from the ceramic

Ceramic inserts often develop brown or orange stains from tomato-based foods, turmeric, or mineral deposits in hard water. These stains are purely cosmetic and don't affect how the cooker works, but if you want to remove them, you have a few options. The gentlest method is to fill the insert with equal parts white vinegar and water, let it soak for one to two hours, then scrub gently with a soft brush and rinse well. For tougher stains, make a paste of baking soda and water, apply it to the stained area, let it sit for 30 minutes, then scrub and rinse.

Avoid bleach or harsh chemical cleaners on the ceramic, because they can damage the glaze and leave residue that may leach into food. If the insert has a non-stick coating on the inside (some Westinghouse models do), be especially gentle—abrasive scrubbing or acidic cleaners can wear that coating away. Once the non-stick surface is damaged, it's difficult to restore, so prevention is worth the extra care.

Eliminating odors that linger in the cooker

Slow cookers can trap strong smells from garlic, onions, fish, or spices, especially if you cook the same ingredient repeatedly. The smell lives in the porous ceramic and in the seal around the lid. To deodorize your Westinghouse cooker, fill the insert with water and add one cup of white vinegar. Put the lid on, plug in the cooker, and run it on low for two to three hours. The vinegar will break down odor-causing compounds and freshen the ceramic. When the cycle is done, unplug the cooker, let it cool, and empty the insert. Rinse it thoroughly with fresh water several times to remove the vinegar smell itself.

If the vinegar method doesn't fully eliminate the odor, try this: fill the insert with water, add the juice of two lemons or two tablespoons of lemon extract, and run the same cycle. Lemon is a natural deodorizer and smells much better than vinegar. You can also place a small bowl of baking soda inside the unplugged, uncovered cooker overnight—baking soda absorbs odors without adding moisture. After any deodorizing treatment, leave the insert and lid out to air-dry completely before storing them, so no moisture gets trapped inside.

Storing your slow cooker to prevent mold and damage

How you store your Westinghouse cooker between uses matters more than most people realize. Always remove the ceramic insert and glass lid before storing the base. Store them separately in a cool, dry place—not stacked inside each other, because trapped moisture can lead to mold growth or mineral buildup. If you live in a humid climate, consider storing the insert and lid in a cabinet with a small packet of silica gel or a bowl of baking soda to absorb excess moisture.

Store the heating base with the cord wrapped loosely (not tightly coiled, which can damage the wire insulation) and the top uncovered so air can circulate inside. Never store it with the insert in place, because condensation can form inside the base and corrode the electrical components. If you won't be using your cooker for several months, wipe down the base one more time before storing it, and check it for any signs of damage or corrosion before plugging it back in.

Troubleshooting common Westinghouse slow cooker problems

If your Westinghouse cooker isn't heating evenly, the problem is usually a dirty heating element or an insert that isn't sitting flat in the base. Make sure the bottom of the ceramic insert is clean and dry before placing it back in the base—any food residue or water can create an air gap that prevents heat from transferring properly. If the insert is warped or cracked, it needs to be replaced; Westinghouse sells replacement inserts separately, and they're relatively inexpensive.

If the cooker heats on high but not on low, or if it won't turn on at all, check that the base is plugged in and the outlet is working by plugging in another appliance. If the outlet is fine but the cooker still won't work, the internal heating element or switch may have failed. Contact Westinghouse customer service with your model number (usually found on a sticker on the base) to discuss repair or replacement options. Most Westinghouse slow cookers come with a one-year warranty that covers defects in materials and workmanship.

Frequently Asked Questions

Can I put my Westinghouse slow cooker insert in the dishwasher?

Yes, the ceramic insert and glass lid are dishwasher-safe on the top rack. The heating base should never go in the dishwasher or be submerged in water. Hand-washing is also fine and may extend the life of the insert if you use a soft sponge and avoid abrasive scrubbers.

What should I do if food is burned onto the bottom of the insert?

Fill the insert with warm water and let it soak for 15 to 20 minutes. Add a tablespoon of baking soda to the water if the food is really stuck. Use a soft brush or cloth to gently lift the food away—never scrape with metal, because it will scratch the ceramic and create places where stains and odors can hide.

My slow cooker smells like old food even after washing. How do I fix it?

Run the cooker on low for two to three hours with a mixture of water and one cup of white vinegar in the insert. The vinegar breaks down odor-causing compounds in the porous ceramic. Rinse thoroughly with fresh water several times, then let the insert and lid air-dry completely before storing.

Is it safe to use my slow cooker if water got inside the heating base?

No. Unplug it immediately and let it sit in a warm, dry place for at least 24 hours before plugging it back in. If you notice discoloration, corrosion, or a burning smell when you do plug it in, stop using it and contact Westinghouse customer service, because internal damage may have occurred.

Where can I find replacement parts for my Westinghouse slow cooker?

Westinghouse sells replacement ceramic inserts, glass lids, and heating bases through their website and through major retailers like Amazon and Walmart. You'll need your model number, which is usually on a sticker on the bottom or back of the heating base, to order the correct part.