How to Clean Your Kitchen Extractor Hood with Vinegar and Bicarbonate

The kitchen extractor hood often goes unnoticed despite working hard every day, so cleaning it is usually pushed to the bottom of the list. Once it becomes clogged, the room feels stuffier, cooking is less enjoyable and the fan sounds laboured rather than quiet.

Why your extractor hood matters more than you think

Most households pay attention to the extractor hood only once it begins to roar or drip with grease. At that point, however, it has already lost a considerable amount of efficiency. A grimy hood has difficulty drawing in steam, allows odours to spread into other rooms and makes the motor work harder.

Uneven suction, louder noise and lingering odours are often just symptoms of filters packed with old grease.

This creates several problems. Fine particles released by frying and grilling remain in the kitchen, reducing indoor air quality. Greasy deposits build up more quickly on ceilings and cupboards. Electricity consumption can also rise because the fan has to work harder to shift the same amount of air.

Hygiene is another consideration. When old cooking fat is reheated, it gives off odours and may slightly influence the flavour of food cooked nearby. The extractor hood is intended to remove this combination of vapours and fumes. If it cannot do so, the distinction between “freshly cooked” and “stale kitchen” becomes very small.

The quiet “pro” trick: vinegar steam plus a bicarbonate bath

Professional cleaners do not usually spend hours scrubbing. Instead, they loosen the dirt first and then lift it away with very little rubbing. The same approach works exceptionally well for kitchen extractor hoods, with ordinary household products.

A short burst of vinegar steam loosens the grease, and a very hot bicarbonate soak does the heavy lifting on the filters.

This two-stage approach often surprises people because it is so simple. It requires no aggressive degreasers or overpowering chemical odours, yet it can revive metal surfaces and help the fan draw air more freely.

What to prepare before you start

Where possible, switch off the extractor hood at the mains, and allow the hob to cool if you have been cooking. Cover the hob with a clean towel to catch drips. Wear washing-up gloves and gather two microfibre cloths, a non-abrasive sponge, and a small tool for tight spaces, such as a soft brush or cotton buds.

You need only two simple solutions:

• A bowl of warm water with a small squeeze of washing-up liquid.
• A saucepan containing water and a glass of white vinegar.

The second solution creates the steam that loosens greasy deposits from the hood casing and around its filters.

Step 1: vinegar steam to loosen the greasy film

Bring the vinegar water to a gentle simmer, then set the pan on the hob directly beneath the extractor hood, leaving the hood switched off for now. Allow the steam to rise towards the metal for roughly 8–10 minutes. Its mildly acidic vapour softens the sticky coating that ordinary wiping barely removes.

Switch off the hob and leave the steam to settle briefly. While the surfaces remain warm and damp, clean the exterior of the hood using a microfibre cloth dipped in the soapy water and thoroughly wrung out. On stainless steel, wipe in the direction of the grain to prevent streaking.

Use a second cloth and clean water to rinse the surface, then dry it immediately. Even this short routine can noticeably improve the appliance: it appears less dull, has fewer marks and feels smoother.

Step 2: a bicarbonate bath for grease-clogged filters

The filters are where most of the work is needed. These metal inserts collect fat carried by steam, eventually becoming sealed up like a blocked lung. Remove them carefully, following the instructions for your particular model.

Fill a sink or large basin with very hot water, close to boiling point. Add two heaped tablespoons of bicarbonate of soda for every litre of water, then stir briefly. Fully immerse the filters and leave them for 10–15 minutes. As the solution works beneath the greasy layer, small bubbles will begin to appear.

When the solution is hot enough and the soak is long enough, the grease slips away with almost no pressure on the sponge.

Once they have soaked, clean both sides of the filters with a soft sponge. Add one drop of washing-up liquid for persistent grime in corners. Rinse them under running water until the water runs clear, shake away the excess, then stand the filters upright to dry naturally. Drying vertically helps moisture drain away and prevents water marks.

Many newer metal filters are dishwasher-safe. If your manual permits this, place them upright on a hot cycle, leaving plenty of room around them. In very hard-water areas, avoid doing this every week, as limescale may gradually dull their finish.

Step 3: internal surfaces and delicate components

If your extractor hood opens, internal panels and corners where dirt accumulates will be visible. Wipe the accessible sections with a cloth lightly dampened in the same soapy water used before. Avoid the motor and electrical components: this is a wiping job, not a soaking job.

A cotton bud is useful for screws and narrow joins. Use only a minimal amount of liquid so that it does not drip. Afterwards, wipe with an almost dry damp cloth to remove soap, then dry all areas promptly. This helps delay the return of greasy residue and stops odours lingering in concealed corners.

Step 4: restoring a clean stainless-steel shine

To finish stainless steel neatly, use a microfibre cloth to apply a 50/50 solution of water and white vinegar, then polish with a dry cloth. This leaves the surface clearer, with fewer fingerprints and streaks.

Do not use abrasive scouring pads, steel wool or bleach. These can scratch and dull the finish, and may permanently damage modern extractor hoods, particularly brushed surfaces that reveal every mark.

Simple ways to keep kitchen smells under control

A newly cleaned extractor hood will already deal with fumes more effectively, although demanding cooking sessions can challenge any system, especially deep frying, fish or long braises. A few straightforward habits can help freshen the room sooner.

• Keep the hood running for 10–15 minutes after cooking to clear remaining vapours.
• Leave a small bowl of bicarbonate on the worktop overnight to absorb lingering odours.
• Simmer citrus peel in a pan of water for ten minutes to neutralise heavy kitchen air.

For a light fragrance, put one or two drops of essential oil onto a cotton pad near the bin or in a discreet corner. Do not place oils near the extractor hood or filters, as they can create extra residue and reverse some of the cleaning effort.

How often should you clean the extractor hood?

The ideal schedule depends on the frequency and type of cooking you do, although regular light cleaning is better than occasional intensive scrubbing. Many repair technicians say they can judge a household’s cleaning routine simply by listening to the hood when it is switched on.

For recirculating hoods fitted with charcoal filters, manufacturers generally recommend replacing them every three to six months, according to use. These filters do not wash effectively, and attempts to clean them usually reduce their ability to capture odours.

One safety rule is essential: never combine white vinegar with bleach or powerful chlorine-based cleaners. This mixture produces gases that should not be inhaled in an enclosed kitchen. Before using a new product on the hood, test it first on a small concealed area, such as behind a panel or underneath the unit.

What this means for your kitchen, your bills and your safety

A clean extractor hood offers more than an attractive social-media appearance. It improves airflow, reduces the greasy layer that collects dust and can slightly reduce energy use because the fan is not forced to work through obstructed filters. For those cooking several times daily, this difference can build up over the months.

In safety terms, reducing grease inside and around the hood also lowers the risk of fire above the hob. In a busy home where pans can overheat, a neglected, sticky filter provides fuel for flames. Regular bicarbonate baths remove this potential fuel and make the set-up safer.

There is a psychological benefit as well. An extractor hood that runs quietly, has a neutral smell and looks clean changes the atmosphere of a kitchen. When frying or grilling smells clear more quickly, people are more likely to prepare a wider variety of meals. This can encourage a move away from takeaways and towards home cooking, bringing clear benefits for health and household budgets.

For anyone designing a new kitchen, these cleaning methods prompt another consideration: which extractor hood should you choose in the first place? Models with easily removable metal filters, smooth internal surfaces and accessible panels make the vinegar-and-bicarbonate routine quicker. When comparing appliances in a showroom, ask how the filters are removed and how frequently they require replacement, rather than considering only the number of fan speeds.