Today's ink is Robert Oster Chocolate. This is one of those inks that looks different on every paper. I purchased my sample of ink from Vanness Pens.
Chocolate is a dark reddish brown color, not quite red but not quite brown. It looks more red in swabs and more brown in writing.
This ink turns black around the edges when pooled. On Tomoe River paper in large swabs the ink looks more purple, on the Col-o-ring card above it looks more red, and in writing it looks more brown.
Let's take a look at how the ink behaves on fountain pen friendly papers: Rhodia, Tomoe River, and Leuchtturm.
Dry time: 20 seconds
Water resistance: Low
Show through: Medium
On 20 pound copy paper the ink behaved well, no issues that I noticed.
Ink swabs for comparison, left to right (top to bottom for mobile RSS): Robert Oster Dark Chocolate, Robert Oster Chocolate, and Robert Oster Maroon 1789. Click here to see the Robert Oster inks together. I wanted to compare it against Dark Chocolate just because the names are similar, but the color is closer to Maroon 1789 in swabs.
I used an medium Pelikan M400 White Tortoise on Tomoe River paper. The ink had an average flow.
Overall, it's an interesting color, somewhere between red and brown, but not quite what I would call a chocolate color. The shading is my favorite part of this ink. Give it a try, you might love it.
Disclaimer: I purchased this ink myself, and all photos and opinions are my own. There are no affiliate links on this page.