Written by Andrei Zamiralov, Electronics Repair Technician

Published: April 22, 2025 · Updated: March 15, 2026

TL;DR

Cooking releases fat aerosol droplets measuring 1–10 micrometers — small enough to pass through the PS5's intake vents. In a studio apartment (yksiö), where the kitchen is often 2–3 meters from the TV, your console filters every cooking session. Grease binds dust into a solid layer that standard cleaning can't remove. Service every 6 months instead of annually if you cook regularly at home.

The Physics of Cooking Aerosols

High-temperature frying produces fat aerosol particles in the 1–10 micrometer size range that remain suspended in indoor air for 20–40 minutes, according to research on cooking-source particles published in Building and Environment. The PS5's cooling fan moves approximately 120 liters of air per minute at moderate load — meaning it processes a studio apartment's full air volume in under 5 minutes.

Dry dust settles on its own and can often be cleared with compressed air. Greasy dust behaves differently. It bonds to whatever surface it contacts — heatsink fins, fan blades, capacitor bodies — and solidifies as it cools into a semi-rigid film. This is why a grease-contaminated PS5 feels sticky near the intake vents, not just dusty. The interior is correspondingly worse than the exterior suggests.

The heatsink is the most vulnerable component. It's designed with tightly spaced aluminum fins to maximize surface area for heat dissipation. Those same tight gaps are perfect traps for greasy aerosol particles. Once fins are partially bridged by solidified grease-dust, airflow resistance increases sharply and the console's thermal headroom drops even though the fan is still spinning at the same speed.

Citation capsule: Research on indoor cooking emissions shows that pan-frying at 200°C generates fat aerosol particles in the 1–10 micrometer range that remain airborne for up to 40 minutes in an unventilated space (Building and Environment, cooking-source particle studies). These particles are well within the size range that passes through PS5 intake vents without restriction.

Why Are Helsinki Studio Apartments High Risk?

Helsinki's housing market has made yksiö (studio apartment) living mainstream. According to HSY (Helsinki Region Environmental Services), the average yksiö in the Helsinki metropolitan area measures approximately 32m². In these apartments, the kitchen, living area, and any gaming setup share the same airspace — typically with the stove just 2–4 meters from the TV wall.

Many older Helsinki buildings use recirculating range hoods rather than ducted ones that vent outdoors. A recirculating hood with a charcoal filter catches some grease particles, but it doesn't remove them from the apartment's air — it filters and returns the same air. When the filter is past its service life (which happens fast if you cook frequently), it stops capturing particles effectively and the cooking aerosol circulates freely.

The combination — small shared airspace, short stove-to-console distance, and recirculating rather than vented extraction — makes the typical Helsinki yksiö one of the harder environments for electronics longevity. It doesn't mean you can't game there. It does mean the cleaning interval needs to be shorter.

How Do You Diagnose Grease Contamination at Home?

Three simple checks don't require opening the console and take under 2 minutes total. None of them are definitive on their own, but two positives together are a reliable signal that standard dust cleaning won't be sufficient.

The touch test. Run a finger along the PS5's casing near the intake vents — bottom and side, where air enters. A sticky or slightly oily feel, rather than the dry texture of ordinary dust, means the intake area has accumulated grease. The inside is always in worse condition than the exterior at the same location.

The smell test. Let the console run for 15 minutes under moderate load — playing a game works well. Hold your hand near the exhaust vent and notice whether there's a faint cooking smell. Grease that has coated internal components heats up again during operation and releases the same compounds that originally came from your stove.

The sound test. Grease-contaminated fan blades develop uneven aerodynamic profiles from asymmetric buildup. A clean fan produces smooth, consistent airflow noise. A contaminated fan sometimes produces a slightly gritty or irregular sound — not always loud, but noticeably different from when the console was new. If two of these three checks are positive, a degreasing service is the right next step rather than a standard clean.

Practical Protection Steps for Studio Gamers

None of these steps require significant cost or change to your routine. They do require consistency — the problem is cumulative, so skipping the hood once a week adds up over months.

1. Use the range hood every time, and run it afterward. This is the single most effective step. Run the hood during cooking and continue for 15 minutes after you finish. The aerosol cloud doesn't clear instantly — it takes time to settle or be captured. If your hood is the recirculating type, replace the charcoal filter every 3–6 months depending on how often you cook.

2. Maximize distance. Every meter between the stove and your PS5 matters. Fat aerosol concentration drops with distance from the source. If a bedroom or a wall-opposite corner is available, that's a better location for the console than the main living area directly facing the kitchen.

3. Keep the console elevated. Floor-level grease and dust concentrations are higher than at shelf height, especially in the area near the stove. A shelf or media unit at 50cm or above puts the console above the worst accumulation zone.

4. Use a dust cover when the console is off. PS5-specific covers — available from Verkkokauppa and Amazon.fi — block the intake vents when the console isn't running. They take 3 seconds to remove. They block months of passive contamination during the hours per day the console sits idle while you cook, eat, or sleep.

5. Service every 6 months rather than annually. If you cook at home daily and the console is within 4 meters of the stove, a 12-month cleaning interval isn't short enough. Semi-annual cleaning catches buildup before it reaches the point where heatsink fins become bridged and airflow is genuinely restricted.

What Does Professional Grease Cleaning Involve?

Grease cleaning takes longer and costs slightly more than standard dust cleaning — typically €99–119 versus €89 for a straightforward clean. The price difference reflects one key technical reality: isopropyl alcohol, which is the standard solvent for electronics cleaning, isn't effective on polymerized cooking fats. Those require food-grade degreasers formulated to break down triglycerides without attacking plastic or PCB protective coatings.

The process involves full disassembly to access the heatsink and fan assembly. Degreaser is applied to the heatsink fins and worked in with soft brushes to reach between the fins without bending them. The fan is cleaned separately — blade by blade if buildup is significant — then dried thoroughly before reassembly. In severe cases, the heatsink is removed entirely and processed outside the chassis.

The result looks and tests differently from a standard dust clean. Fin spacing is fully restored. Airflow resistance drops back to factory specification. In our testing, CPU temperatures under sustained load typically fall by 8–15°C after a grease clean on a heavily contaminated unit — more than after a standard dust clean on the same console would achieve. One additional inspection step applies specifically to grease cases: if contamination has reached the motherboard surface, we check the PCB lacquer for early corrosion signs before reassembly.

Is your PS5 near the kitchen?

A sticky exterior means the inside is worse. Book a diagnostic — it's free, and you'll know exactly what condition the cooling system is in.

Book Free Diagnostic

Frequently Asked Questions

Can grease damage the PS5 motherboard?

In most cases, grease affects the heatsink and fan rather than the motherboard directly. However, in severe contamination — typically after 18–24 months without cleaning in a high-cooking environment — grease can reach the motherboard surface and begin degrading the protective lacquer over PCB components. We inspect for this during every grease clean, and it's one reason early intervention is cheaper than waiting.

How do I know if my PS5 has grease inside without opening it?

Three checks: run a finger along the intake vents — sticky feel means inside is worse. Let the console run under moderate load for 15 minutes and smell the exhaust — a faint cooking odor is a reliable indicator. Listen for a gritty or uneven fan sound. If two of these are positive, a degreasing service is more appropriate than a standard dust clean.

How much does grease cleaning cost at MopsiHuolto?

Grease cleaning typically costs €99–119, versus €89 for a standard clean. Isopropyl alcohol alone doesn't dissolve polymerized cooking fats, so the process requires food-grade degreasers and more disassembly time. In severe cases, the heatsink is removed and processed separately. The diagnostic is always free — you'll know the exact condition before committing to any service.

How often should I clean my PS5 if I cook every day?

Every 6 months rather than annually. Daily cooking in a studio apartment where the console is within 4 meters of the stove — and where the range hood recirculates rather than vents outdoors — creates continuous low-level grease exposure. Semi-annual cleaning prevents buildup from reaching the point where heatsink fins become blocked and CPU temperatures begin climbing under load.

Does a range hood actually protect my console?

A ducted hood (vented to outside) running at full power reduces airborne aerosols substantially. Recirculating hoods with charcoal filters help but don't eliminate the problem — filters must be replaced every 3–6 months to remain effective. Running the hood for 15 minutes after cooking matters as much as during cooking, since the aerosol cloud takes time to clear even after the heat source is off.