 *Photo: Unsplash*
Montreal apartments come with two very different microwave situations. In the city's pre-war and postwar triplexes — the brick walk-ups that line streets from Villeray to Verdun, NDG to Hochelaga — most kitchens were built without a dedicated range hood. When a microwave was eventually added, it is almost always an over-the-range model that doubles as ventilation. Every meal cooked on the stovetop sends grease vapour directly into its vent filters. These filters can go from clean to black within a matter of months. In newer condos and renovated units across Griffintown, Plateau, and downtown, countertop or built-in microwaves are the norm — cleaner overall, but still prone to splatter buildup and lingering smells from Montreal's diverse cooking cultures.
Regardless of type, a dirty microwave is one of the first things a landlord inspects at move-out under Quebec tenancy law. A cleaning deduction can be applied to your damage deposit if the appliance is not returned in the condition it was in when you moved in. This guide walks you through a complete microwave clean — steam method, vent filter care, burnt smell removal, and a maintenance schedule designed for Montreal apartments.
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What You'll Need
All supplies are available at any IGA, Maxi, Metro, Jean Coutu, Pharmaprix, or Canadian Tire in Montreal:
- Microwave-safe bowl or measuring cup
- Water (tap is fine; distilled water from Maxi or Canadian Tire leaves fewer mineral deposits on the interior coating)
- White vinegar (vinaigre blanc) — natural degreaser and odour neutralizer
- Fresh lemon (optional alternative to vinegar)
- Baking soda (bicarbonate de soude) — gentle abrasive and odour absorber
- Dish soap (liquid, unscented preferred for enclosed spaces)
- 2–3 microfibre cloths
- Toothbrush (for door seal grooves and vent slots)
- Paper towels
- Rubber gloves (optional)
- Non-toxic degreaser spray (Method, Attitude, or President's Choice Green label — available at Metro, Maxi, and IGA) for heavily soiled exteriors
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Montreal's Two Microwave Situations
Over-the-Range Microwaves in Triplexes
The dominant configuration in pre-war Montreal triplexes — particularly in NDG, Rosemont, Villeray, Plateau, and Hochelaga-Maisonneuve — is the over-the-range microwave installed where a dedicated range hood would otherwise go. These units pull cooking vapour upward through metal mesh grease filters, pass it over a charcoal filter in recirculating models, and exhaust it either to the exterior or back into the kitchen.
Because many Montreal triplexes have no exterior venting, 100% of the cooking grease that enters the filter stays in your kitchen air cycle. The consequence: filters on these models can clog within one to three months of regular cooking. A clogged filter makes the unit overheat, shortens its lifespan, and allows every stovetop session to fill your kitchen with grease-laden air. Cleaning the vent filter is not optional — it is basic appliance maintenance that many tenants overlook entirely.
Countertop and Built-In Microwaves in Condos
Newer condo buildings (post-2000 in Griffintown, Plateau, Ville-Marie, and Downtown Montreal) almost always include dedicated range hoods and separate countertop or built-in microwaves. These units accumulate interior splatter but require no filter maintenance. Note that Montreal's hard water — running at 90–150 mg/L of dissolved calcium and magnesium from the St. Lawrence watershed — can leave faint mineral rings inside the cavity after steam cleaning if surfaces are not wiped dry immediately. Using filtered or distilled water for the steam step prevents this.
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Step 1: Steam-Clean the Interior
Steam is the most effective method to loosen dried splatter without applying chemical sprays inside a food-contact appliance.
1. Fill a microwave-safe bowl with 1 cup of water and 1 tablespoon of white vinegar. Alternatively, squeeze several lemon slices into the water and drop in the peels — lemon adds a pleasant scent and mild antibacterial action. 2. Microwave on HIGH for 3–5 minutes until the window fogs completely and the interior fills with steam. 3. Do not open the door — let it sit closed for an additional 3–5 minutes. The trapped steam continues softening splatter without any effort on your part. 4. Remove the bowl carefully — it will be very hot. Use oven mitts or let the bowl cool for a minute before handling. 5. Wipe down the interior immediately while surfaces are still warm and steam-softened.
*Montreal hard water note:* Montreal tap water at 90–150 mg/L leaves faint white mineral deposits if the steam condensation is not wiped away completely. After cleaning, dry all interior surfaces thoroughly with a clean cloth. For mineral rings already visible on the interior, a second pass with a cloth dampened in undiluted white vinegar dissolves calcium deposits in under a minute.
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Step 2: Remove and Wash the Turntable
1. Remove the glass turntable plate and the plastic roller ring beneath it. 2. Wash both in warm soapy water in the sink. Most turntable plates are dishwasher-safe — check for a dishwasher-safe symbol on the underside, or consult your model's manual. 3. Dry both thoroughly before replacing. Water left on the roller ring or the track causes squeaking and, over time, can allow mould to develop on the plastic components. 4. While the turntable is out, wipe the floor track and the center hub with a damp cloth, then dry completely.
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Step 3: Scrub the Interior Surfaces
After steaming, most splatter wipes off with minimal friction:
1. Ceiling: The microwave ceiling accumulates the most grease splatter from soups, sauces, and reheated stews. Wipe with a microfibre cloth dampened in the vinegar-water solution. For stuck-on residue, apply a thin paste of baking soda and water with your fingertip, let sit for two minutes, then wipe clean.
2. Side walls: Same method. Montreal kitchens with gas ranges — common in older Plateau and Villeray triplexes — see heavier splatter from high-heat cooking in woks and cast-iron pans.
3. Floor: The bottom accumulates sugar burns and boil-over residue most often. Baking soda paste on a damp cloth lifts most residue without scratching the interior coating.
4. The vent or light cover strip (usually a perforated strip along the interior ceiling): wipe gently with a damp cloth. Do not allow water to enter the light socket housing or vent holes.
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Step 4: Clean the Door
The microwave door has four distinct areas:
1. Interior door face: Wipe with a vinegar-water cloth to remove grease and splatter. 2. Door seal and gasket: Use a toothbrush dampened with dish soap solution to scrub the rubber seal around the full perimeter. Food and grease trapped in the seal folds cause persistent odours and, over time, can prevent the door from closing with a full seal. Quebec tenancy inspectors specifically check door seals at move-out. 3. Window glass: Clean the inside surface with a vinegar-water cloth. Many older microwave models have a secondary plastic layer inside the door — splatter often hides between the glass and plastic layers. If you can separate them, clean both sides. 4. Outside of the door: Wipe with a damp microfibre cloth and a small amount of dish soap. Dry immediately to avoid streaks on painted or stainless surfaces.
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Step 5: Clean the Exterior
1. Control panel: Spray a small amount of cleaner onto a cloth — never directly onto the panel — and wipe gently. Button crevices collect grease from hands that touched food before pressing them. Use a cotton swab or toothpick for tight spots between buttons. 2. Top and sides: For over-the-range models, the top exterior is often coated in kitchen grease from nearby stovetop cooking. A non-toxic degreaser cloth or warm soapy microfibre cloth applied with firm pressure removes it. 3. Handle: One of the highest-touch surfaces in the kitchen. Clean with dish soap solution, dry, and optionally wipe with diluted white vinegar for disinfection.
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Cleaning Over-the-Range Vent Filters (Montreal Triplex Essential)
If you have an over-the-range microwave in a Montreal triplex, cleaning the grease filters is the single most important maintenance task — and the one most consistently skipped.
Identify Your Filter Type
- Metal mesh grease filters (silver or aluminum rectangular mesh panels on the underside of the unit): washable and reusable. These are the filters you can clean at home.
- Charcoal or carbon filters (usually square or circular, located behind the grease filter or inside the top vent housing): NOT washable — they must be replaced when saturated.
Cleaning Metal Mesh Grease Filters (Every 1–3 Months)
1. Remove the filters by pressing the latch tabs inward and pulling down. Refer to your model's manual — latch locations vary by brand. 2. Soak in very hot water with dish soap for 10–15 minutes. Soaking dissolves polymerized grease that scrubbing alone cannot reach. 3. Scrub with a dish brush, then rinse under hot water. 4. For heavily soiled filters (dark brown or black): fill a pot with water and 1/4 cup of baking soda, bring to a boil, and submerge the filters for five minutes. Most grease lifts with a light scrub afterward. 5. Dishwasher option: most metal mesh filters can go in the dishwasher on the top rack. The high-heat cycle and detergent combination is effective on baked-on grease. Check your manual to confirm dishwasher compatibility. 6. Dry completely before re-installing. Wet filters restrict airflow, drip grease onto the stovetop, and may trigger a smoke detector.
Replacing Charcoal Filters (Every 6–12 Months)
Charcoal filters cannot be cleaned — the activated carbon becomes saturated with odour molecules and stops functioning. Replacement filters are available at Canadian Tire, Home Depot, or Rona. Check the model number sticker inside your microwave door frame to find the correct part number for your unit.
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Removing Burnt Food Smells
Burnt smells — from forgotten popcorn, exploded tomato sauce, or overheated leftovers — penetrate the interior coating and can linger for days even after a thorough clean. Three methods work reliably:
Method 1: Baking soda absorption Place an open bowl of baking soda inside the closed microwave overnight — do not run the unit. Baking soda absorbs airborne odour molecules from the enclosed space. Replace with fresh baking soda and repeat if the smell persists after 24 hours.
Method 2: Lemon steam Place a halved lemon face-down on a plate with two tablespoons of water. Microwave on HIGH for 3–4 minutes, then let sit, door closed, for 10 minutes. Citric acid neutralizes alkaline burnt residues; the lemon essential oils temporarily replace the burnt smell while the cavity airs out. Follow with the standard wipe-down.
Method 3: Coffee grounds Place two tablespoons of fresh (or used) coffee grounds in an open dish inside the closed microwave overnight. Effective for heavy grease-based odours common in Montreal kitchens where stovetop cooking is frequent.
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Maintenance Schedule
| Frequency | Task | |---|---| | After each use | Wipe interior immediately if splatter occurred; use a microwave-safe lid or paper towel to cover food | | Weekly | Wipe interior surfaces, door interior, and handle | | Monthly | Full steam clean + turntable wash + door seal scrub with toothbrush | | Every 1–3 months | Clean metal mesh grease filters (over-the-range models only) | | Every 6–12 months | Replace charcoal filter (over-the-range recirculating models only) | | Move-out | Full deep clean of all interior surfaces, turntable, door seal, vent filters, and exterior — return to move-in condition per TAL |
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TAL Move-Out Context
Under Quebec tenancy law, you must return the microwave in the same condition it was in when you moved in — accounting for normal wear, but not for grease buildup, burnt residue, or malfunctioning components caused by neglect.
At a move-out inspection, a landlord or property manager will typically check:
1. Interior walls, ceiling, and floor — no splatter, grease streaks, or food residue 2. Turntable plate — present, clean, and uncracked 3. Door seal — no embedded food residue, no damage 4. Control panel — functioning and clean 5. Vent filters on over-the-range models — present and not visibly clogged with grease 6. No burnt smell indicating embedded residue or coating damage
A professional microwave cleaning, when included as part of a [deep-cleaning service visit](/en/services/deep-cleaning), costs far less than a potential deduction from your security deposit. If you are preparing for a full move-out clean, the [move-out cleaning checklist for Montreal apartments](/en/blog/move-out-cleaning-checklist-montreal) covers every appliance and surface a landlord typically inspects.
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When to Call a Professional
Clean the microwave yourself for routine splatter and odours. Contact an appliance repair technician if you notice:
- Sparking or arcing during use — stop using immediately. This indicates a failing magnetron, a damaged interior coating (do not use a unit with chipped interior paint), or metallic contamination.
- Door does not close flush or the door latch clicks but the unit continues running without the door fully sealed — a door safety interlock switch has likely failed.
- Turntable motor won't spin even after cleaning the track and reinstalling the ring — the drive motor may need replacement.
- Burning smell when the microwave is empty — interior coating damage or magnetron fault. Do not use the unit.
Most Montreal microwave repairs run $80–$180 for a technician visit. This is often worth it for a quality over-the-range unit, which retails at $400–$900 new.
For routine [home cleaning in Montreal](/en/services/home-cleaning), Sparkling Stays includes microwave interior cleaning as part of every standard and deep-clean visit. Learn more about [what is included in a home cleaning service](/en/blog/what-is-included-in-a-home-cleaning-service) and [how much cleaning costs in Montreal](/en/blog/how-much-does-cleaning-cost-in-montreal).
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Frequently Asked Questions
Q: How often should you clean a microwave?
A: Wipe the interior after any splatter — dried food is significantly harder to remove than fresh. A full steam clean and turntable wash should happen monthly for an actively used microwave. Over-the-range grease filters need cleaning every 1–3 months depending on how much stovetop cooking happens in your kitchen. Montreal apartments with gas ranges and no separate range hood accumulate grease in filters faster than those with electric stoves.
Q: What is the fastest way to clean a microwave?
A: The steam method is both the fastest and most effective: fill a microwave-safe bowl with 1 cup of water and 1 tablespoon of white vinegar, microwave on HIGH for 3–5 minutes, let sit 5 minutes, then wipe. The entire interior usually cleans in under 10 minutes for a regularly maintained microwave. White vinegar is available at any Jean Coutu, Pharmaprix, IGA, or Maxi in Montreal.
Q: Can you use baking soda to clean a microwave?
A: Yes. Baking soda is both a gentle abrasive and an odour absorber — two properties useful for microwave cleaning. Mix baking soda with a few drops of water to form a paste, apply to stubborn splatter, let sit two minutes, then wipe clean with a damp cloth. For odour absorption, place an open bowl of dry baking soda inside the closed microwave overnight. Baking soda (bicarbonate de soude) is available at any grocery store in Montreal.
Q: How do you get a burnt smell out of a microwave?
A: After cleaning all visible residue, the three most effective methods are: (1) an open bowl of dry baking soda left in the closed microwave overnight to absorb odour molecules from the air; (2) a lemon steam — microwave a halved lemon face-down with two tablespoons of water for 3–4 minutes, then let sit 10 minutes; (3) fresh coffee grounds in an open dish overnight for grease-based odours. If the smell persists after two treatments, the interior coating may be damaged and retaining odour permanently.
Q: How do you clean over-the-range microwave vent filters?
A: Remove the metal mesh grease filters from the underside of the unit by pressing their latch tabs. Soak in very hot soapy water for 10–15 minutes, then scrub with a dish brush. For heavily blackened filters, boil in water with 1/4 cup of baking soda for 5 minutes — grease lifts easily after. Most metal mesh filters are also dishwasher-safe (top rack). Re-install only when fully dry. This should be done every 1–3 months in Montreal triplexes where stovetop cooking is the main ventilation user.
Q: Can I put my microwave turntable in the dishwasher?
A: Most microwave turntable plates are dishwasher-safe — check for the dishwasher symbol on the underside or confirm in your model's manual. The plastic roller ring beneath the turntable is also usually dishwasher-safe, but the high heat of a drying cycle can cause some rings to warp over time; hand-washing is safer for the ring. Dry both thoroughly before replacing — trapped moisture under the roller ring leads to squeaking and eventual mould growth.
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Related guides: - [How to Deep Clean a Kitchen in Montreal](/en/blog/how-to-deep-clean-a-kitchen-montreal) - [How to Deep Clean an Oven in a Montreal Apartment](/en/blog/how-to-deep-clean-an-oven-montreal) - [How to Deep Clean a Refrigerator in a Montreal Apartment](/en/blog/how-to-deep-clean-a-fridge-montreal) - [Eco-Friendly Cleaning in Montreal](/en/blog/eco-friendly-cleaning-montreal) - [Move-Out Cleaning Checklist for Montreal Apartments](/en/blog/move-out-cleaning-checklist-montreal)
