I have washed my keyboard under the faucet on 2 occasions {someone spilled coffee on it }
rinse it well and shake it to get the excess water out of it, then let it sit in the sun or finish drying it with a blow dryer..
it really did work for me..

but it didn't work the 3rd time - son spilled syrup on it and then left to go to work...
Just wayyy too sticky i think and then dried on - I didn't know about it until hours later when I tried to type and the keys were all sticky...

washing didn't help
took it apart and that didn't help
can't buy that kind any more either... just a look alike one, but the keys don't feel the same ..

PS - I just smelled my keyboard. just a bit dusty smelling LOL