I'll be the first to admit that filling a fountain pen with baystate blue ink is a bit like playing with fire, but the color is just too good to ignore. If you've spent any time in the fountain pen community, you've probably heard the legends. People talk about this ink like it's a sentient being—one that's incredibly beautiful but also slightly vengeful. It's the kind of blue that doesn't just sit on the paper; it practically screams at you.
I remember the first time I saw a sample of it. I was scrolling through some forums, looking for a blue that didn't look "office-boring." Most blues are either too dark (looking almost black) or too pale (looking like watered-down denim). Then I saw a swatch of this stuff. It looked like it was plugged into a wall socket. It was vibrant, electric, and unlike anything I'd ever seen in a bottle. Naturally, I had to have it, despite all the warnings.
The Most Controversial Ink in the World
There's really no other way to put it: baystate blue ink is controversial. In the world of fountain pen enthusiasts, mentioning this ink is a great way to start a heated debate. Some people swear by it and refuse to use anything else, while others won't let a bottle of it within ten feet of their expensive gold-nib pens.
The reason for the drama is pretty simple. This ink has a reputation for being well, permanent. And I don't just mean permanent on the paper. I mean permanent on your desk, your fingers, your sink, and your cat if it gets too close during a refill. It's a high-maintenance relationship. You can't just treat it like a standard Waterman or Quink ink. If you go into it expecting a clean, easy experience, you're going to have a bad time. But if you know what you're getting into, it's a total game-changer.
That Electric Blue Glow
Let's talk about the actual color for a second. Why do people put up with the hassle? It's because baystate blue ink is arguably the most vibrant blue on the market. It's based on vintage ink formulas from the 1940s, which gives it that "vintage" pop that modern, safer inks usually lack.
When you write with it, the lines on the page almost seem to hum. It has this incredible "pop" that stands out even on the cheapest, yellowest legal pad you can find. Most inks look better on high-end paper like Tomoe River or Clairefontaine, but this ink is surprisingly democratic. It looks stunning on a 50-cent notebook. There's no shading to speak of—it's just a solid, punchy wall of cobalt. If you're the type of person who wants their handwriting to be noticed from across the room, this is your ink.
The Paper Factor
One weird thing about this ink is how it behaves on different surfaces. On some papers, it can feathers a bit because it's so saturated. But honestly? I don't even care. The sheer intensity of the color makes up for a little bit of fuzziness around the edges. It's also incredibly fast-drying, which is a massive plus for left-handed writers who are tired of smearing their work. Just be careful—once it's dry, it is on there.
The Rules of Engagement
If you're brave enough to try baystate blue ink, you need to follow a few "unwritten" rules to keep your sanity (and your furniture) intact.
First off, don't mix it with other inks. Most fountain pen inks are slightly acidic, but this one is alkaline. If you mix it with a standard ink, even a tiny leftover drop in your pen's feed, it can react and turn into a weird, goopy sludge. That sludge is a nightmare to clean out. When I use it, I make sure the pen is surgically clean first, or better yet, I dedicate a specific pen to this ink and nothing else.
Choosing the Right Pen
I wouldn't recommend putting this ink into a $500 limited edition Montblanc. It's just not worth the anxiety. Most people who love baystate blue ink use what we call "sacrificial pens." I have a couple of cheap Lamy Safaris and a few Platinum Preppys that are dedicated solely to this ink.
The ink can stain the internal components of a pen, especially if it's a demonstrator (those clear pens where you can see the ink sloshing around). If you put it in a clear pen, expect that pen to be blue forever. Personally, I think a blue-tinted TWSBI looks kind of cool, but if you're a perfectionist, stick to opaque pens where the staining won't hurt your feelings.
Cleaning Up the Crime Scene
At some point, you will spill a drop. It's an inevitable rite of passage. When that happens, don't panic, but also don't expect a damp paper towel to do the trick.
The secret weapon for cleaning up baystate blue ink is actually very simple: bleach. A very diluted bleach solution (about 1 part bleach to 10 parts water) will wipe this ink off most hard surfaces instantly. It's like magic. I've accidentally stained my white porcelain sink a deep shade of indigo, and a quick wipe with a bleach-soaked cloth brought it back to white in seconds.
That said, please don't use bleach on your skin or inside your expensive pens unless you really know what you're doing. For fingers, you're just going to have to accept that you'll have "Smurf fingers" for a day or two. It's a badge of honor in the pen world.
Why It's Still My Favorite
Despite the staining, the pH levels, and the potential for a "smurf-tastrophe" on my desk, I keep coming back to it. There's something about the way it looks on a handwritten letter that makes everything feel more important. It's not a "safe" choice, and maybe that's part of the appeal.
In a world where everything is digital and sanitized, using an ink that requires a bit of respect and care feels rewarding. It reminds me of why I got into fountain pens in the first place—to have a tactile, slightly messy, and deeply personal connection to my writing.
Final Thoughts
If you're on the fence about trying baystate blue ink, I say go for it. Just buy a cheap $5 pen, keep a bottle of bleach under the sink, and enjoy the most ridiculous blue you've ever seen. It's a polarizing product for sure, but life is too short to write with boring colors.
Just maybe don't fill your pen over an expensive rug. Trust me on that one. Whether you end up loving it or swearing it off forever, every pen fan needs to try it at least once. It's a classic for a reason, and once you see that glow on the page, you'll understand exactly why we all keep talking about it.