Nicotine Stained Grout - Whiten Or Renew?

[youdontwanttodoitlikethat]

My daughter bought a small flat that was owned by a heavy smoker. The bathroom and kitchen tiles are only a few years old, and both the tiles and grout are in excellent condition. Only problem is the grout has been discoloured by the nicotine/smoke in the house.

Is there a way to whiten the grout, or will it need to be removed and redone? If the grout needs removing, what's the best method? I have an oscillating multitool if that helps.

Many thanks for any advice.

 

[Tigercubrider]

Have you tried sugar soap?
I once tarted up a shower cubicle with a hand tool to remove ground and it was hard. I think dremel did a grout remover. A multitool might work. You can get hooked blades but I haven't seen them in a while

You can also get grout whitener- like you did for white pumps back in the day
It works, but not brilliant

 

[foxhole]

Grout remover blade for multitool.

 

[youdontwanttodoitlikethat]

Thanks to both of you for your replies. Not tried the sugar soap yet, only just bought a box today from Toolstation. I assumed the grout being slightly recessed in a groove and not being a smooth surface would be very difficult to clean with sugar soap. I suppose I could try scrubbing with a nail brush.

More than likely I will try the whitener as it seems less work. If that fails, get a grout remover for my multitool.

 

[youdontwanttodoitlikethat]

This has to be worth a go for less than 3 quid.

https://www.toolstation.com/forever-white-grout-reviver-200ml/p50440