What percentage of isopropyl alcohol should I use to clean a keyboard?

Use 70% isopropyl alcohol on a cloth for the outer case and keycaps — it's gentle enough for plastic and still disinfects. Save 90%+ IPA for internal parts like the PCB, switch contacts or a stem you're deep-cleaning, since higher concentrations evaporate faster and leave less residual water that could corrode metal contacts. Never spray alcohol directly onto the board; always dampen a cloth or cotton swab first.

Can I put my keycaps in the dishwasher?

You can, but it's riskier than hand-washing. iFixit's own teardown guides note most keycaps survive a dishwasher cycle once removed from the board, but the high heat of a dry cycle can warp cheaper ABS caps, and running the switches or PCB through by mistake will ruin them. Hand-washing keycaps only, in a bowl of lukewarm (not hot) soapy water, is the safer default — skip the dishwasher entirely if your keycaps are anything you'd mind losing.

Will cleaning damage my keyboard's switches?

Not if you keep liquid out of the switch housing itself. Compressed air and a brush handle surface dust safely with zero risk. Isopropyl alcohol is safe on switch exteriors and contacts in short, dampened-cloth applications, but soaking a switch or letting alcohol pool inside it can strip factory lubrication and leave the stem feeling scratchy afterward — the same lube covered in our how to lube keyboard switches guide.

How often should I clean my mechanical keyboard?

A 30-second pass with compressed air or a brush every 1-2 weeks stops dust and crumbs from working under the keycaps in the first place. Pull the keycaps for a full wash every 1-3 months depending on how often you eat at your desk, and do a full switch-level clean only when a key actually feels gritty or inconsistent — that's a sign debris has reached the stem, not just the surface.

What's the fastest way to clean a keyboard without taking it apart?

Tilt the board upside down and give it a few short bursts of compressed air to knock loose dust and crumbs out from between the keys, then wipe the case and keycap tops with a microfiber cloth lightly dampened with 70% isopropyl alcohol. That two-step pass takes under two minutes and handles the surface grime that accounts for most of what makes a keyboard feel dirty day to day.

How to Clean a Mechanical Keyboard (2026 Guide)

Quick Answer: Clean a mechanical keyboard by first blasting loose dust and crumbs out with short bursts of compressed air, then wiping the case and keycaps with a microfiber cloth dampened in 70% isopropyl alcohol — save 90%+ IPA for internal parts like switch contacts. Pull keycaps off with a keycap puller for a deeper wash in lukewarm soapy water (skip the dishwasher on anything you’d mind losing), and only pull individual switches if a key feels gritty rather than just dusty. A quick surface pass takes under two minutes; a full teardown clean runs 20-40 minutes depending on board size.

Keyboards are consistently ranked among the dirtiest everyday objects you touch, and a mechanical board’s gaps between keycaps make it worse than a flat laptop keyboard at trapping crumbs, skin cells and dust. The good news is that cleaning one properly is quick, cheap and low-risk as long as you know which tool to use where. Here’s the process, step by step.

Cleaning methods compared

Method	Best for	Time	Risk if done wrong
Compressed air	Loose dust & crumbs, weekly upkeep	~30 seconds	Low — tilt the can upright per its instructions
70% isopropyl alcohol + cloth	Case & keycap surface grime	~2 minutes	Low — never spray directly, dampen the cloth
Keycap removal + soapy water	Deep clean, sticky/greasy caps	~20-30 minutes	Medium — hot water or a dishwasher's dry cycle can warp ABS caps
90%+ isopropyl alcohol	PCB, switch contacts, connectors	~10 minutes	Medium — pooled liquid inside a switch can strip lube
Switch pulling + cleaning gel	Gritty/inconsistent individual keys	~5-10 min per switch	Low on hot-swap boards, needs desoldering on soldered ones

Keyboard cleaning, by the numbers

70% isopropyl alcohol is the recommended strength for a keyboard’s outer case and keycaps, while internal components like the PCB and switch contacts call for 90%+ IPA — the higher concentration has less water content, evaporates faster and leaves less residual moisture that could corrode metal contacts, per iFixit’s own electronics-cleaning guidance.
Hot water and dishwasher dry cycles are the most common cause of warped keycaps, according to iFixit’s keyboard teardown guide — lukewarm hand-washing is the safer default, and the guide notes most keyboards can technically survive a dishwasher pass once fully disassembled, but that’s a risk worth skipping on caps you’d mind losing.
A basic compressed-air-and-cloth pass takes under two minutes, while a full keycap-removal deep clean runs 20-40 minutes depending on board size — most of the visible dirt on a daily-use board comes from the fast pass, not the deep one.

iFixit Electronics Cleaning Kit

Microfiber cloths · dust blower · anti-static brush · keycap puller · ~$19.99

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Repair-grade tools built to survive years of reuse rather than a single cleaning session.

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How to clean a mechanical keyboard, step by step

Unplug the board. Disconnect USB or power off Bluetooth before you start — this avoids stray keypresses and is basic safety around any liquid.
Tilt and blast with compressed air. Turn the keyboard upside down at an angle and give it several short bursts of compressed air between the keys to knock loose dust, crumbs and hair free. Hold the can upright, not tilted, per the can’s own instructions.
Wipe the case and keycap tops. Dampen a microfiber cloth with 70% isopropyl alcohol and wipe every surface you can reach without removing keycaps. This handles the oily film that builds up from fingertips.
Pull the keycaps for a deep clean (optional). Use a keycap puller to lift caps straight up — the wire-loop style spreads pressure more evenly than the plastic ring bundled with most boards, which is a common cause of cracked caps. Wash caps in a bowl of lukewarm, not hot, water with a few drops of mild soap, then let them air-dry fully before reinstalling.
Clean around exposed switches. With keycaps off, use a soft brush or cleaning gel to lift debris from around the switch stems. Save 90%+ isopropyl alcohol on a cotton swab for stubborn grime directly on switch contacts, applying sparingly rather than letting liquid pool inside the housing.
Reassemble and test. Reseat every keycap and confirm each key registers cleanly before you consider the job done.

If a specific key still feels gritty after this process rather than just dusty, the debris has likely reached the stem itself — pulling that one switch with a puller for a closer look, and relubing it while you’re in there, usually fixes it; see our how to lube keyboard switches guide for that next step. Don’t have a keycap puller or brush kit yet? Our best keyboard cleaning kit roundup compares the full toolkits, and our best keycap puller guide breaks down which puller style suits hot-swap versus soldered boards.

Which method do you actually need?

You eat at your desk and just want the crumbs out: Compressed air every 1-2 weeks is enough — skip the alcohol and keycap removal unless something feels sticky.
Keycaps look shiny, oily or discolored: Pull them for a lukewarm soapy wash. Skip the dishwasher unless you’re prepared to lose a cap or two to warping.
A specific key feels gritty or inconsistent, not just dusty: The problem is at the switch, not the surface — pull that switch and check for debris on the stem or contacts before assuming the whole board needs a lube job.
You’re cleaning a hot-swap board you also want to sound better: Combine this cleaning pass with a relube while switches are already exposed — see our how to lube keyboard switches guide.

The bottom line

A mechanical keyboard stays feeling new with a two-minute weekly habit — compressed air to knock loose crumbs, then a cloth dampened with 70% isopropyl alcohol for the case and caps. Save deeper cleaning (keycap removal, 90%+ IPA on internals) for every few months or whenever a key stops feeling right, and always keep liquid out of the switch housing itself. If a switch still feels gritty after cleaning, that’s a lube problem, not a dirt problem — our how to lube keyboard switches guide covers the fix. Shopping for a board that’s easier to keep clean in the first place? Our best hot swappable keyboard picks make switch-level cleaning tool-free.