Remove cofffee stain from concrete?

[!pse203]

Any ideas?

I tried Oxiclean concrete cleaner and the pressure washer. Actually made it more obvious, since it brightened the surrounding concrete, but made no impact on stain.

[MRM]

A little bleach and water with a scrub brush should take care of it. Bleach is strongly basic and coffee is acidic, so bleach dissolves coffee easily. Adding a splash of bleach to wash water is an old trick to revive stained dishes. It should work the same on concrete.

[look 171]

I spilled plenty of coffee on people's driveways. Leave it and the next rain will wash it all out if not, take a water hose, soap and a brush.

[!pse203]

Thanks. Will try bleach.

Its rained and snowed here plenty - hasn't moved it at all.

[KFC911]

Mebbe just pour coffee over the rest of it....or listen to someone else

[vash]

i'll go out on a limb and assume this was not a triple cream, 1.75 shot, caramel, peppermint, tall, double foam latte with chia back?

[!pse203]

Originally Posted by KC911

Mebbe just pour coffee over the rest of it....or listen to someone else

It is actually quite a nice color

[look 171]

Originally Posted by !pse203

Thanks. Will try bleach.

Its rained and snowed here plenty - hasn't moved it at all.

Maybe you drink that fancy coffee. I don't know what to tell ya

[masraum]

I don't think rain works with coffee. I see lots of parking lots these days that seem covered in coffee stains from folks pouring their Starbucks out of their car doors.

Bleach works pretty good to remove coffee stains.

If that doesn't work, maybe you could spill some old motor oil or house paint on the coffee stain!

[vash]

how nice is this concrete to even cause coffee to be a concern? i spill coffee on my driveway, i will still worry about tripping on the crack more

[look 171]

Just think, how many time we spill coffee on ourselves while drivine? I do it almost daily because I am incompetent bit it washes right out. But then again, I am not in a white dress shirt but cheap Tee shirt and shorts. It should be similar for concrete from my experiences. Time to crank up that pressure washer and fan out the output or maybe its time to just wash up that entire driveway.

[!pse203]

Originally Posted by vash

how nice is this concrete to even cause coffee to be a concern? i spill coffee on my driveway, i will still worry about tripping on the crack more

It's on the path right outside the front door. It's fairly nasty. Son was getting his keys out and dropped it.

[!pse203]

Originally Posted by look 171

Just think, how many time we spill coffee on ourselves while drivine? I do it almost daily because I am incompetent bit it washes right out. But then again, I am not in a white dress shirt but cheap Tee shirt and shorts. It should be similar for concrete from my experiences. Time to crank up that pressure washer and fan out the output or maybe its time to just wash up that entire driveway.

You're right - I got pressure washer out. It didn't touch it.

[!pse203]

[stevej37]

With your pressure washer...have you used one of these?
I've had excellent results with one.

[!pse203]

That looks interesting. It is a Karcher washer too.

[dad911]

Originally Posted by !pse203

Stained concrete is big bucks. Finish the pattern, and give it a clear coat.

[stevej37]

I use it every year for my approach to my garage. It's shaded and mildew grows every year.
The rotary washing makes for a consistent cleaning...instead of streaks/lines in the concrete.

[!pse203]

Hit a small patch with some clorox and it seems to work! ( think I removed what looks like Italy) Don't have enough to do the whole area though. Hopefully I can pick some up tomorrow.

Thanks!

[Bob Kontak]

Originally Posted by stevej37

I use it every year for my approach to my garage. It's shaded and mildew grows every year.
The rotary washing makes for a consistent cleaning...instead of streaks/lines in the concrete.

I don't think he has the room to use that effectively given it's a walkway.

OP, what kind of pressure washer? 3,500 PSI or an electric one?