Como limpar a coifa com o método do molho na pia para deixá-la como nova

Why a greasy range hood is more than just ugly

A coifa fica ali, acima do fogão, trabalhando em silêncio todos os dias - e justamente por “sumir” na decoração, acaba sendo uma das últimas coisas que entram na rotina de limpeza. Só que a gordura vai se acumulando, a sucção perde força, o cheiro fica preso no ambiente e, quando você percebe, o inox já parece amarelado e sem vida.

O problema não é só estético. Com o tempo, a coifa passa a espalhar mais do que resolve: a cozinha fica com aquele ar pesado, a gordura gruda em tudo e até cozinhar dá a sensação de que a casa inteira “vira” a panela.

A modern extractor hood doesn’t only pull away visible steam. It captures microscopic droplets of fat, smoke particles and volatile compounds that would otherwise drift around the house. When the filters clog and the metal casing gets coated, this process slows to a crawl.

Uneven extraction, sticky residue and a faint burnt smell often signal a hood that has quietly stopped doing its job.

Grease-laden air doesn’t just settle on cabinet doors. It can change how food smells in the pan, worsen indoor air quality and irritate people with asthma or allergies. In open-plan homes, the problem spreads into the living room and even bedrooms.

Fire safety experts also watch this appliance closely. Fat clinging to filters and ducts can feed a kitchen fire, especially in homes where frying is frequent and filters never get changed. Insurance reports from both the US and UK regularly mention extractor hoods in cooking-related incidents.

How often should you really clean it?

Manufacturers usually give a vague answer, yet real life is more specific. The right frequency depends on how you cook:

• Daily frying, grilling or searing: clean the outer surfaces weekly, filters every 2–3 weeks.
• Mixed cooking with some baking and boiling: surface clean every two weeks, filters monthly.
• Light use, mostly reheating: a monthly wipe-down and filter check often suffices.

If the hood feels sticky when you touch it, or the light looks yellow through a hazy film, you have already waited too long.

The simple “sink soak” method that makes hoods look new

Muita gente imagina que uma limpeza pesada exige produto agressivo e uma tarde inteira de esforço. Na prática, um passo a passo bem feito com água quente, detergente de louça e itens comuns da casa devolve o brilho com menos de meia hora de trabalho ativo.

Step 1: Prepare a warm, degreasing bath

Start by filling a large sink or a plastic tub with very warm water. Add a generous squeeze of standard dishwashing liquid and stir until the water turns slightly cloudy and slippery. For heavy grease, stir in a cup of white vinegar. Vinegar helps break mineral deposits and lifts oxidised film from stainless steel.

Warm water, dish soap and vinegar form a low-cost, low-toxicity mix strong enough to cut through months of cooking residue.

Turn off the hood, unplug it if possible, and let the lights cool. Remove the metal grease filters. Most simply slide or click out. Place them straight into the sink to soak while you work on the rest.

Step 2: Tackle the exterior without scratching it

Dip a soft sponge or microfibre cloth into the warm solution. Wring it lightly so it does not drip into the electrics. Work on the outer casing with short, firm strokes:

• Start under the hood, where the worst grime usually hides.
• Move to the front edge, buttons and knobs.
• Finish with the visible sides and chimney section.

For stubborn patches near the hob, sprinkle a small amount of bicarbonate of soda (baking soda) onto the damp sponge. The fine grains give mild abrasion without scratching most stainless steel surfaces.

Wipe with the grain rather than in circles; this keeps steel looking smooth and avoids fine swirls that catch the light.

Step 3: Revive the filters properly

While you have been wiping the casing, the filters have been quietly loosening their fat build-up. Lift one from the sink. You should see the water turning cloudy or slightly yellow, which is a good sign.

Use a dish brush or an old toothbrush to scrub both sides of each filter, paying attention to the edges where grease often clings. If the build-up is thick, sprinkle more baking soda directly onto the bristles before scrubbing.

Filter type	Cleaning method	Replacement frequency
Metal mesh	Soak in warm soapy water, scrub, rinse, air-dry	Usually reusable for years if cleaned monthly
Charcoal cartridge	Do not wash; gently dust or vacuum the surface	Replace every 3–6 months, depending on use
Baffle (commercial-style)	Soak and spray with degreaser if needed	Long-lasting, but needs regular baths

Rinse the metal filters under hot running water until no suds remain. Let them dry completely before putting them back, as trapped moisture can corrode metal and damage the fan.

Step 4: The finishing shine and fresh-air trick

Once the casing feels clean, wipe it again with a cloth dampened only with clear water. This step removes soap traces that might leave streaks. Then dry everything with a soft towel.

A quick final buff with a dry microfibre cloth makes stainless steel look brighter and hides minor smears left by greasy fingers.

To keep the area smelling pleasant, some homeowners use a tiny piece of cotton wool with a few drops of essential oil tucked inside the upper chimney, away from heat and electrics. Another useful habit is to sprinkle a little baking soda on the worktop or near the bin before cooking especially strong foods such as fish or bacon. After cooking, simply wipe it up; the powder will have absorbed much of the odour.

Why this low-tech method often beats harsh chemicals

Professional degreasers work, but they carry trade-offs: strong fumes, skin irritation and a higher environmental footprint. The dish-soap-and-vinegar route relies on surfactants that bond with fat, then rinse away without leaving a heavy chemical smell in the kitchen.

Baking soda adds a gentle mechanical effect. Its particles rub at the grease film, but they dissolve enough in water to avoid deep scratching. Used correctly, this trio handles most domestic cleaning without the expense of specialty products.

There is also a behavioural side. A routine built around common products is more likely to happen regularly. When people associate hood cleaning with a toxic cloud and a ruined Saturday, they simply stop doing it.

Hidden benefits: from energy use to your next home sale

A clean extractor moves air more efficiently. That means you can often run it at a lower speed setting for the same effect, which cuts noise and trims energy use. In small flats, better extraction makes a noticeable difference to condensation on windows and mould risk on kitchen walls.

Estate agents regularly mention the state of the kitchen as a silent signal of how well a property has been cared for. A gleaming hood, bright lights and filters that do not drip or smell tell viewers that the owner watches the details.

The range hood sits right in the visitor’s eyeline; a sticky underside suggests deeper neglect you cannot see.

Renters also gain from better maintenance. A hood that actually moves steam away keeps cupboards drier, which helps prevent swelling, warping and peeling veneer. That reduces arguments over deposits when it is time to move out.

When a deep clean is no longer enough

At some point, age and neglect catch up with the appliance. Signs that you may need more than a simple clean include rattling noises, lights that fail repeatedly, an obvious drop in extraction power or visible rust on the casing.

Before replacing the entire hood, a technician can sometimes service the fan motor, check ductwork for blockages and confirm that the unit suits the size of your hob. Many older homes still rely on hoods that are simply too small for modern, powerful cookers.

For households renovating a kitchen, it pays to think about future cleaning during the design stage. Choosing a model with easy-click filters, a smooth underside and fewer deep crevices makes these monthly sessions much faster. Good access often matters more than an extra boost level on the fan.

As cooking habits shift towards more home frying, air-frying and experimental recipes, this quiet appliance shoulders an even heavier load. A simple thirty-minute routine with warm water, dish soap, vinegar and a handful of baking soda keeps it from turning into a greasy relic above an otherwise stylish kitchen.