Spilled Liquid on Your MacBook? What to Do in the First 10 Minutes

A glass of water, a coffee, a wine at the end of a long day. A MacBook keyboard sits right where drinks land, and the logic board sits right under the keyboard. What you do in the next few minutes matters far more than anything you do next week, because the damage is not the liquid itself. It is electricity running through wet components, and the corrosion that starts as soon as the two meet.

Do this now, in this order

1. Force it off

Hold the power button (or Touch ID button) until the screen goes black. Do not use the Apple menu and do not wait for apps to close. Every second the board is powered while wet, current is finding new paths across it.

2. Unplug everything

Pull the charger first, then any USB-C devices, external drives or displays. A MacBook on charge keeps parts of the board live even when it is shut down.

3. Do not turn it back on. Not even to check.

This is the one people get wrong. The MacBook may well switch on and seem fine. Powering it up while there is still liquid inside is what turns a cleaning job into a replacement. Resist it. If it seems to work, that tells you nothing about what is happening on the board.

4. Get the liquid out, not in

Wipe the outside with a cloth. Then open the lid to about ninety degrees and stand the MacBook upside down in a tent shape on a towel, so anything inside drains out through the keyboard rather than running down onto the board. Leave it like that. Do not tilt it back and forth or shake it, which spreads liquid to parts it had not reached.

5. Note what the liquid was

Plain water is the kindest. Tea, coffee, juice, fizzy drinks, wine and anything with sugar or acid in it are far more corrosive and leave a residue that keeps eating at the board long after it feels dry. Tell the technician exactly what went in and roughly how much, because it changes how the clean is done.

6. Get it to a bench within a day or two

The sooner the board is opened, cleaned and inspected, the less corrosion there is to deal with. We are open 24/7 at 56 Tavistock Place in Kings Cross, so there is no need to wait for the morning. If you cannot get to us, we collect for free, seven days a week.

What not to do

• Rice. It does not draw liquid out of a sealed laptop. It adds starch dust to the ports and wastes the days that matter most.
• Hairdryer, radiator, airing cupboard, oven. Heat drives liquid deeper under chips and connectors, warps the keyboard and can lift components. Dry is not the goal. Clean is.
• Charging it to see if it charges. Charging pushes the most current of all through the board.
• Waiting a week to see if it “dries out”. A MacBook that works after a spill and is never cleaned usually fails a few weeks later, once the corrosion has had time to work. By then the damage is wider and dearer.
• Opening it yourself. The battery is glued in and the board is dense. Without the right tools and a plan you risk making it worse, and the battery is a genuine safety hazard if punctured.

Why the clock matters

Liquid on a powered board does two kinds of damage. The first is immediate: a short circuit that blows a component or a fuse the moment it happens. The second is slow: the residue left behind is mildly conductive and corrosive, so it keeps creeping between the tiny pads and tracks on the board. That is why a MacBook can seem to survive a spill and then, days or weeks later, develop a keyboard with dead keys, a trackpad that stops clicking, a battery that will not charge, or a machine that shuts down at random. Cleaning the board early removes the residue before it gets that far. Cleaning it late means replacing whatever the residue has already destroyed.

What we do with it

The MacBook is opened, the battery is disconnected and the logic board comes out. The board is cleaned properly and inspected under magnification, section by section, for corrosion, burnt components and damaged tracks. Anything affected is replaced or repaired at component level, the keyboard and trackpad are checked, and the whole machine is tested before it goes back together. You get a free diagnosis and an exact quote before any work starts, and our No Fix No Fee promise applies: if we cannot bring it back, you pay nothing. Full details are on our MacBook water damage repair page. It is one of the many jobs covered on our MacBook repair in London page.

Your data

On every MacBook made in the last several years the storage is soldered to the logic board, so your files are on the same board that got wet. If the board cannot be revived, the data has to be recovered at board level, which is delicate work. Two things follow from this. First, do not let anyone “have a go” before a proper diagnosis. Second, tell us straight away if the files matter more than the laptop, so the recovery is treated as the priority. Our data recovery service covers Macs as well as PCs and external drives.

Apple, AppleCare and insurance

Liquid damage is not covered by Apple’s standard warranty. If you have AppleCare+ with accidental damage cover, check the terms and the excess before you decide anything. Apple’s own route for liquid damage is generally to replace whole assemblies rather than repair the board, and some contents or gadget insurance policies will reimburse an independent repair with a written report. Whichever way you go, the advice above is the same: power off, keep it off, get it cleaned quickly.

Next time

Keep drinks on the other side of the desk, use a keyboard cover if you work around liquids, and if you would rather not think about it at all, ask us about nano coating waterproofing, which protects the board itself against the next spill.

Spilled something on a MacBook right now? Walk in to 56 Tavistock Place, Kings Cross, any hour, or book online and bring it straight over. The clean is quicker and cheaper the sooner it starts.