this post was submitted on 06 Jul 2026
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Fountain Pens

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I got inspired and decided to try out a few fountain pen inks the other day. I picked up Organics Studio's Nitrogen.

This is a popular saturated blue ink that has a lot of red sheen to it, looks almost like metallic foil when written on sufficiently ink-resistant paper.

I used it with a broad-nib TWSBI Eco. And in that, that, I agree. It does show a lot of sheen.

One really needs video to see the effect, since one needs to tilt it relative to a light source. A static image doesn't really convey the effect:

https://www.youtube.com/watch?v=NEsHNIn1c7w&t=1460s

But there were some big caveats.

It dries out very quickly on one's nib

My big surprise was how extremely quickly the ink dried on my nib, producing a delay until the ink is flowing and a hard start after just a short time out in the air without ink flowing. People do talk about this online, now that I've gone looking for it, but I wasn't aware of it when getting the ink, and I doubt I'd have gotten it if I'd known about this going into it. One can't just stop and think for very long without needing to start writing to keep the ink flowing. For me, this is frustrating, and really kills the appeal of the ink for me. None of my other inks do this.

One really needs ink-resistant paper to see sheen

Another thing that I hadn't anticipated


not having played around with inks with a lot of sheen prior to this


is that one really needs ink-resistant paper to see the sheen. On ordinary copy paper, it just looks like a blue ink. I knew that there would be a difference, but not that there would be no sheen. On an inexpensive composition notebook I've had sitting around for probably thirty years in my desk, it looks all right, if not quite as shiny as on Iroful paper.

This probably isn't a huge surprise to people who have used inks with sheen, and it's not going to be specific to this particular sheening ink. But I'd expected some sheen to still be visible on more absorbent paper, and it isn't.

It tends to smear and get on things

In the above video, Brian Goulet does mention this and how the ink is infamous for doing this


which I find puzzling, given how quickly it seems to dry out on the nib. So I was expecting to see this. But I still managed to get smearing and blue blotches on my hands multiple times, despite being careful. I haven't seen anything like this with the other inks I've used (though I don't have a huge collection, admittedly).

Other

It has a reputation for staining clear pens. I haven't tried cleaning it out after exhausting my current fill, so no first-hand experience with this, but I thought that I'd also mention this, in case someone runs across this post when considering the ink.

Summary

The ink is pretty, if one wants something with a lot of sheen. I don't dispute that. But it really is a pain in the neck to use.

I don't know of a good "Nitrogen alternative" that performs better, but I have to say that I wouldn't recommend it to anyone unless they are aware of what they are getting into.

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[–] tal@lemmy.today 1 points 1 day ago* (last edited 10 hours ago)

I’ve noticed this problem got far worse the older my bottle got. It doesn’t seal super well, so I wondered if it could be avoided degrading in a better bottle.

That's a good thought. If it's water that's evaporating, I wonder if it could just have some water added?

searches

Looking further, I do see some people recommending diluting it to help with the drying.

https://old.reddit.com/r/fountainpens/comments/lk6tw8/any_tips_to_make_my_life_easier_with_organics/

Maybe water, or I see an extremely small amount of dish detergent recommended, or this stuff. Hmm. I suppose that the down side would be that it might make the dry time and thus potential for smearing worse.

sigh

EDIT: This guy apparently diluted it at 80% water, 20% ink, and Nitrogen apparently still produces a sheen at that point.

https://old.reddit.com/r/fountainpens/comments/fiivdt/os_nitrogen_is_even_nicer_diluted_than_straight/

I did see some comments elsewhere about the risk of dilution diluting anti-mold agents in ink.

EDIT2: I tried diluting the ink in my pen's reservoir to about 50% ink, 50% water, which was all the space presently available for water in the reservoir. That moves the blue from a darker blue to more of a medium blue and makes the red sheen limited to only places where there's ink build-up, even on my Iroful paper. It looks quite a bit different. However, it does appear to resolve the "stop for a brief period of time and the ink does a hard start" issue, which makes it not exasperating for me to write with, at least. I have no idea how that guy with the 80%/20% dilution got full sheen on one of his fish


he must have something that puts down an enormous amount of ink.