How to Remove Burnt-On Grease from Your Oven: A Step-by-Step Guide
No matter how careful you are in the kitchen, burnt-on grease and baked-on food residue are almost inevitable. From bubbling casseroles to overflowing pies and roasted meats, your oven works hard—and over time, grease can accumulate on the walls, floor, racks, and door.
If left too long, burnt-on grease can create unpleasant odours, cause smoke while cooking, reduce your oven’s efficiency, and make cleaning even more difficult.
Fortunately, you don’t need harsh chemicals or expensive products to restore your oven. With a little patience and the right approach, you can safely remove stubborn grease and keep your oven looking its best.
Here’s how.
Why Burnt-On Grease Builds Up
Every time you cook, tiny grease particles and food splatters can settle inside your oven.
Common causes include:
Roasting meats
Baking casseroles
Overflowing pies
Cheese bubbling over
Grease splattering from uncovered dishes
Over time, repeated heating causes these spills to harden, making them much more difficult to remove.
Why You Should Clean It Promptly
Burnt-on grease is more than just unsightly.
Regular oven cleaning helps:
Prevent unpleasant cooking odours
Reduce smoke during baking
Improve cooking performance
Lower the risk of grease fires
Extend the life of your oven
Keep your kitchen cleaner overall
Cleaning small spills early prevents major buildup later.
What You’ll Need
Gather these supplies before you begin.
Cleaning Supplies
Rubber gloves
Microfiber cloths
Soft sponge
Spray bottle
Baking soda
White vinegar
Warm water
Mild dish soap
Plastic scraper
Soft-bristle toothbrush
Avoid steel wool or abrasive scrubbers that may scratch your oven’s finish.
Step 1: Remove Oven Racks
Start by taking out:
Oven racks
Baking stones
Thermometers
Any removable accessories
This gives you full access to every surface.
Step 2: Remove Loose Debris
Use a damp cloth or handheld vacuum to remove:
Burnt crumbs
Loose food
Ash
Grease flakes
Removing loose debris first makes deep cleaning much easier.
Step 3: Make a Powerful Natural Cleaning Paste
One of the best oven cleaners is also one of the simplest.
DIY Grease-Fighting Paste
Mix:
½ cup baking soda
Enough water to form a thick paste
The consistency should resemble frosting.
Step 4: Apply the Paste
Spread the paste generously over greasy areas.
Pay special attention to:
Oven floor
Side walls
Back wall
Corners
Inside of the door
Avoid heating elements, gas ports, fans, and electrical components.
Allow the paste to sit for 8–12 hours or overnight.
This gives it time to soften stubborn grease.
Step 5: Scrub Gently
Using a damp sponge or microfiber cloth:
Wipe away loosened grease.
Rinse frequently.
Repeat until most residue is removed.
For stubborn spots, gently use a plastic scraper.
Never use metal tools that could damage the oven’s enamel.
Step 6: Use Vinegar for Stubborn Residue
Lightly spray white vinegar onto any remaining baking soda.
The fizzing reaction helps lift grease that hasn’t fully loosened.
Wipe everything clean using fresh water and a microfiber cloth.
Repeat if necessary.
Step 7: Clean the Oven Door
The oven door often collects the most visible grease.
For Burnt-On Glass
Apply the baking soda paste directly to the glass.
Allow it to sit for 20–30 minutes before gently scrubbing with a soft sponge.
Finish by wiping with a clean microfiber cloth for a streak-free shine.
Step 8: Clean Oven Racks
While your oven is soaking, clean the racks separately.
Easy Method
Soak them in warm water with dish soap for several hours.
After soaking:
Scrub gently.
Rinse thoroughly.
Dry completely.
For stubborn grease, sprinkle baking soda over the racks before soaking.
Dealing with Extremely Stubborn Grease
If grease has built up over several years, one cleaning session may not remove everything.
Instead of scrubbing aggressively:
Repeat the baking soda treatment.
Allow it to soak longer.
Work in small sections.
Be patient.
Several gentle cleanings are better than damaging your oven with harsh tools.
Should You Use Commercial Oven Cleaners?
Commercial oven cleaners can be effective for heavy grease buildup, but they should always be used with care.
If you choose a commercial product:
Follow the manufacturer’s instructions carefully.
Wear gloves.
Ensure good ventilation.
Keep children and pets away from the area.
Never mix cleaning products.
Natural cleaning methods are often sufficient for routine maintenance and avoid strong chemical odours.
What About Self-Cleaning Ovens?
Self-cleaning ovens use extremely high temperatures to burn away food residue.
Before using this feature:
Read your owner’s manual.
Remove racks if recommended.
Open windows or use exhaust fans for ventilation.
Be prepared for some smoke or odours.
If your oven has excessive grease buildup, manually removing heavy grease first is often recommended, as large amounts of grease can create excessive smoke during the self-cleaning cycle.
Prevent Future Grease Buildup
The easiest oven to clean is one that’s cleaned regularly.
Simple Habits
Wipe up spills once the oven has cooled.
Use baking trays beneath dishes that may overflow.
Cover roasting pans when appropriate.
Clean small spills before they harden.
Schedule seasonal oven cleaning.
Regular maintenance prevents hours of scrubbing later.
Don’t Forget the Rest of the Kitchen
Once your oven is sparkling clean, take a few extra minutes to refresh the surrounding areas.
Clean:
Stove top
Range hood
Backsplash
Kitchen cabinets
Countertops
Appliance handles
Floors
A clean oven feels even better in a spotless kitchen.
When Is It Time for Professional Help?
If you’re preparing for the holidays, moving into a new home, or tackling months (or years) of built-up grime, professional deep cleaning services can help restore your kitchen to its best.
A thorough kitchen cleaning doesn’t just improve appearance—it creates a fresher, more enjoyable space for cooking and entertaining.
Enjoy a Cleaner Kitchen Every Day
Removing burnt-on grease may seem like a daunting task, but with the right tools and a little patience, it’s completely manageable. By cleaning your oven regularly and dealing with spills before they bake on, you’ll enjoy better cooking performance, fewer unpleasant odours, and a kitchen that feels cleaner overall.
At Maret’s Home Cleaning, we believe every kitchen deserves to shine. Whether you’re preparing for holiday baking, welcoming guests, or simply giving your home a seasonal refresh, our professional cleaning services help you enjoy a cleaner, healthier home—one room at a time.
Contact us today to schedule your Toronto home cleaning and experience the difference of a professionally cleaned home!
