My Cube hardtail has a little sticker on the back of the seat tube stating ‘handwash only’ – I’ll be honest, trying to get it into the zanussi never crossed my mind.. (who says the Germans don’t have a sense of humour!) 😀
Seriously though, Turtle wax wash n shine in a bucket o’ water with the dustpan brush, followed by a rinse & if needed, a drive train clean up with Park scrubber / citrus degreaser. Bounce dry, and either GT85 or if the weather’s minging ACF50 (better at keeping the salt-laden sand & spray at bay on my coastal commute). It doesn’t get a wash after each outing, as it’s in daily use, but I generally wipe the stanchions over.