Let’s be honest: when it comes to industrial cleaning, dry steam sounds like a miracle in a boiler. Hot, fast, chemical-free, and powerful enough to strip away grime that’s been clinging on since the 90s. Yet, like most miracles, there’s a catch. The magic only works if you actually use it properly. That’s where most people slip up. Yes, the list of dry steam mistakes to avoid is longer than the queue at the canteen when chips are on the menu, but today we’re boiling it down to seven of the biggest culprits.

Steam cleaning planes might not sound like the most glamorous subject, but when you’re crammed into a metal tube at 35,000 feet with two hundred strangers, you’ll be grateful someone thought of it. From the cabin where you sip your tepid tea, to the cargo hold where your bag goes on its mysterious holiday, steam cleaning is what keeps both passengers and crew from living in a flying petri dish.