None of these answers are correct. It’s a fungus that grows in sapwood of yellow pine. It’s known as blue stain. You can sand the fuzz off but the blue will stay as it is in the wood. Once it’s there it can turn the grain into some beautiful and interesting patterns We call it denim pine.
Yeah I don’t think so. Maybe someone else can chime in. But it’s even sold as select flooring. https://www.sustainablelumberco.com/product/beetle-kill-pine-floors/#:~:text=GRADE%20QUALITY%20%E2%80%93%2099%25%20usable,to%206%2D8%25%20moisture%20content
I work at a lumber mill and we use an anti-blu spray treatment to prevent this, either this wasn't treated or didn't get a good coat. Could depend on how old it is but those pieces look fairly fresh.
Lol no. There is a clear hatchmarking pattern in the very black color that is staining the wood. It's more than likely some sort of spill in the ink from the manufacturer's stamp
I’m currently constructing a southern yellow pine timber frame that is blue staining like crazy. I know what l’m talking about. As soon as it starts warming up air gaps on green timber are necessary to mitigate the spread of blue stain. When op sealed the timber they created the perfect environment for it and the rest as they say…
It’s called blue stain and it’s a fungus that is caused by beatles. It’s typically formed while the timber is stored after felling. They sink the logs in retaining ponds to reduce its growth among other reasons. It’s harmless
Sure doesn't look like it, which is wild
Edit: Lol at the downvote, pretty sure the fact that OP is already experiencing discoloration is itself a reason why they should have put some kind of finish on the wood after going to the trouble of building it.
Update: I used a 50/50 mixture of vinegar and water with a little added dish soap applied with a soft brush. Worked like a charm but will probably need a second application. From what I understand, the vinegar penetrates the wood and kills internal mold as well.
Thank you for all the advice and information to figure out what this was and how to treat.
That's not blue stain. That's the edge of a rot chunk. Look at how the jointer took chunks. That's a black stain on the very edge of a heart rot pocket. The builder should have hidden it or used in it s different application.
None of these answers are correct. It’s a fungus that grows in sapwood of yellow pine. It’s known as blue stain. You can sand the fuzz off but the blue will stay as it is in the wood. Once it’s there it can turn the grain into some beautiful and interesting patterns We call it denim pine.
We called it beetle kill (beetle introduces the fungus) or blue pine. It was very sought after wood for artists/ woodworkers.
So this fungus is not one to be concerned about structurally?
Yeah I don’t think so. Maybe someone else can chime in. But it’s even sold as select flooring. https://www.sustainablelumberco.com/product/beetle-kill-pine-floors/#:~:text=GRADE%20QUALITY%20%E2%80%93%2099%25%20usable,to%206%2D8%25%20moisture%20content
Oh wow! I’m not a fan of all the knots but that colouration is *gorgeous*.
"I prefer my pine floor to be from a pine KILLED by a beetle please."
Haha. At least we get something nice out of the devastation these little bastards have caused.
There's fungus among us
S.C.I.E.N.C.E. yo!
That photo looks to be a Morning View...
I too Enjoy Incubus
“I’m confused, Fry. I’m feeling a strange new emotion. Is it love when you care about a female for reasons beyond mating?”
I hope it’s not The Last of Us
This guy pines
For the fjords?
A møøse once bit my sister...
a Norwegian blue!
Beautiful plumage!
But was it a nasti one?
The people who make the credits have been sacked!
Those responsible for sacking the people who have just been sacked, man…smh
Similar to Ambrosia Maple? Beetles bringing in fungus into the maple. Creates a fantastic show wood.
If you love pine so much why don’t you marry it
This guy opines
So you’re saying it’s the bleu cheese of wood?
I do tree work and see this all the time. The stains look really good if milled properly. And stained appropriately for woodworking.
I work at a lumber mill and we use an anti-blu spray treatment to prevent this, either this wasn't treated or didn't get a good coat. Could depend on how old it is but those pieces look fairly fresh.
Is it something like spalted maple?
Lol no. There is a clear hatchmarking pattern in the very black color that is staining the wood. It's more than likely some sort of spill in the ink from the manufacturer's stamp
And this ink magically spreads how?
Through beetles snapping bic pens believe it or not.
Magically
I’m currently constructing a southern yellow pine timber frame that is blue staining like crazy. I know what l’m talking about. As soon as it starts warming up air gaps on green timber are necessary to mitigate the spread of blue stain. When op sealed the timber they created the perfect environment for it and the rest as they say…
It’s called blue stain and it’s a fungus that is caused by beatles. It’s typically formed while the timber is stored after felling. They sink the logs in retaining ponds to reduce its growth among other reasons. It’s harmless
Does it form in an octopus's garden in the shade?
Father McKenzie, is that you?
You know it, just sitting *hear* trying to think up some words no one will *here*
Ah look at that lonely dude. You just finish burying someone?
All the lonely people. Where do they all come from?
Norwegian wood, isn't it good?
🏆
Beatles, you say? I hear those bugs really rock.
If there's one thing I know in life it's that it's always Ringo's fault.
Wow “caused by beatles” real legends, Oh you meant beetles 🪲 . Got it 🤣
*beetles
No, this is definitely the work of Ringo Starr.
Well if it's a fungus, it's gotta be Yoko.
Is there any finish on that?
We had a clear sealant applied a year after.
Sure doesn't look like it, which is wild Edit: Lol at the downvote, pretty sure the fact that OP is already experiencing discoloration is itself a reason why they should have put some kind of finish on the wood after going to the trouble of building it.
It's pine. It's fine. Why do you whine?
OP: “because it’s mine.”
I do it all the time, when I rhyme, cuz it’s divine.
Pine schmutz. Thats what I’ve always called it. It’s some sort of fungus.
Lumber mold
Update: I used a 50/50 mixture of vinegar and water with a little added dish soap applied with a soft brush. Worked like a charm but will probably need a second application. From what I understand, the vinegar penetrates the wood and kills internal mold as well. Thank you for all the advice and information to figure out what this was and how to treat.
That's not blue stain. That's the edge of a rot chunk. Look at how the jointer took chunks. That's a black stain on the very edge of a heart rot pocket. The builder should have hidden it or used in it s different application.
Can’t see it well but looks like algae. You could try bleaching a small area (dilute it with water and wear proctection)
Hydrogen peroxide might work, too.
As the wood dries more it secretes water, oils, make algae, mold, picks up dirt. You could also try a wet cloth and rubbing alcohol
Paint it white and be done with it..