jdiamond wrote:
Klaus1, the Apple support page on cleaning is utterly useless. All it says is to use a microfiber cloth. It gives no recommendation whatsoever as to what cleaning solution is best. It's even humorous because it repeats the same non-info for each Apple product individually.
Question is can ordinary water really help with grease-like smudges or that white build up?
I think the link provided by Klaus1 is very clear. In addition to other things it says "Keep liquids away from the product." I think "cleaning solutions" and "water" would fall into the category of liquids.
Learn how to clean your Mac notebook computer.
MacBook, MacBook Pro, and MacBook Air
When cleaning the outside of your MacBook, MacBook Pro, or MacBook Air, first shut down your computer and unplug the power adapter. Then use a damp, soft, lint-free cloth to clean the computer's exterior. Avoid getting moisture in any openings. Do not spray liquid directly on the computer. Don't use aerosol sprays, solvents, abrasives, or cleaners containing hydrogen peroxide that might damage the finish.
To clean the screen on your MacBook, MacBook Pro, or MacBook Air, first shut down the computer and unplug the power adapter. Dampen a soft, lint-free cloth with water only, then use it to clean the computer's screen.
Important: The bottom case of the MacBook (13-inch, Late 2009) and MacBook (13-inch, Mid 2010) uses a soft nonslip material. Use a 3M Gray Microfiber or soft dye-free, lint-free cloth to clean the bottom case.