[Johnny B]

I have a small cafe that I clean weekly. It has two large, single glazed windows, neither of which open. There is a problem with condensation on the interior glass.

Has anyone got any suggestions on how to reduce, or preferably eliminate, the problem. Leaving the doors open and fitting double glazing is not an option in this case.

I have tried using an anti-misting solution for car windows (can't remember what it's called but Halfords stock it). The customer was happy for me to use it on the glass, the results of which he was happy with, but I thought were truly awful. So I am looking for a solution which will leave the glass condensation and smear free. Over to you guys.

Many thanks,
John   

[Aqua Power Solutions]

John, unless the shop owner invests in extractor fans/ air conditioning  this problem will exist in a cafe . Ed

[Ian Lancaster]

There's no solution.

When the outside temperature is lower than the inside, it cools the glass.  In the cafe the atmosphere will be saturated with water vapour from the cooking, boiling water etc etc.  When this water saturated air comes into contact with the cold glass the water will condense out.

Only way to combat it is to just serve sandwiches and soft drinks - and ban customers from breathing so there's no water vapour from their breath.

Or heat up the outside air to the same temperature as inside

A huge extractor fan might do the job, but that would be the same as leaving the door open

[hasti]

There's no solution.

When the outside temperature is lower than the inside, it cools the glass.  In the cafe the atmosphere will be saturated with water vapour from the cooking, boiling water etc etc.  When this water saturated air comes into contact with the cold glass the water will condense out.

Only way to combat it is to just serve sandwiches and soft drinks - and ban customers from breathing so there's no water vapour from their breath.

Or heat up the outside air to the same temperature as inside


A huge extractor fan might do the job, but that would be the same as leaving the door open

Or put a dehumidifier in there 

[CleanClear]

Has anyone got any suggestions on how to reduce, or preferably eliminate, the problem. Leaving the doors open and fitting double glazing is not an option in this case.

I have tried using an anti-misting solution for car windows (can't remember what it's called but Halfords stock it). The customer was happy for me to use it on the glass, the results of which he was happy with, but I thought were truly awful. So I am looking for a solution which will leave the glass condensation and smear free. Over to you guys.

Many thanks,
John   

Apply neat washing up liquid on a damp cloth and rub it over the interior glass. Initially it will look a bit foamy but will dry quite quick and clear. It won't then condensate and will stay clear. You can try a test patch in your own home on some glass or a mirror. Then if you breathe on it and try to mist it or fog it you'll see it will stay clear.

[andyM]

Dehumidifier.

[Aqua Power Solutions]

Cleanclear, i will have to try that , thanks . Ed

[Dave Willis]

Maybe a small waffle cloth and some Nano Uber Hydrophobic- technology would do it?


Works well on a lotus leaf.