Wet time: the step everyone skips

Most cleaning failures do not happen because the wrong product was chosen. They happen in the few seconds after it goes on.

Every disinfectant label states a time the surface has to stay wet. Not a suggestion. A condition. If the surface dries before that time is up, the product has not done the job the label describes, however clean the surface looks.

I started as a cleaner in 1997. I have watched this step get skipped for almost thirty years. Spray, wipe, move on. It looks efficient. It feels thorough. It is neither.

Why does it keep happening? Rosters are tight. A light spray can dry in seconds on a warm bench. I have stood and watched product evaporate off a surface almost as soon as a wipe passes over it, long before the label's time is up. Cloths soak the product back up before it has had its time. And most staff were never told that wet time exists. They were shown what to use, not how it works.

There is a second step people skip, and it comes first. Cleaning and disinfecting are not the same thing. Soil, grease and organic matter get in the way of a disinfectant. Clean first, then disinfect. A skipped clean is a skipped clean, whatever follows it. Residue left behind does its own damage over time, building toward biofilm, but that is a story for another article.

So what does a site actually check?

Read the label. Find the wet time and the surface it applies to.

Watch a routine clean. Not a demonstration. The real one, at the real pace.

Time it. Does the surface stay visibly wet for the full period? If not, the method needs to change: more product, a different applicator, or a different sequence.

Then verify. ATP readings and accredited swabs tell you what the eye cannot.

None of this is complicated. It is training, timing and a process people can follow on a busy shift. That is the work.

A process only works when people follow it. Wet time is where that is easiest to see.