Product Reviews
Author: Carlos Pires
Robert Oster: Grun Schwarz
- Review Add on: 12-09-2025
- Average Rating: (5)
I asked Joost for help with a dark green colour, without shading, shimmer or sheen, that would be office-friendly.
He recommended this one to me, and I can say I'm very pleased with how the ink behaves. It's a beautiful colour, quite dark but not quite black. It's perfect for breaking away from the usual black, blue, and dark blue colours in the workplace.
Thank you very much, Joost.
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Author: RSM
Fantastic colour
- Review Add on: 22-08-2025
- Average Rating: (5)
Velvet Crush is a butiful purple. As usual Robert inks bahave in a very good way in any fountain pen. I really like this Brand and colour.
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(5)
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(5)
Author: Sara
Most behaved inks
- Review Add on: 21-05-2025
- Average Rating: (5)
These inks are really great and write so well with any pen brand and nib size. The variety is also great and is my new favourite ink brand.
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(5)
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Author: LB
- Review Add on: 08-05-2025
- Average Rating: (5)
Summer storm is one of my favorite inks!
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(5)
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(5)
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(5)
Author: S.S.
R.O. Honey Bee
- Review Add on: 01-05-2025
- Average Rating: (5)
A very nice and pleasant ink for anyone searching for a rich yellow with great shading leaning into a deeper orange and brown.
As always, Robert Oster inks are well behaved and are suitable for all kinds of nibs and filling systems with little maintenance even after drying out.
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(5)
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(5)
Author: JbJ
Gorgeous color
- Review Add on: 25-04-2025
- Average Rating: (4)
Such a beauriful color and amazing quality. Writes perfect on differebt types of paper
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(5)
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(4)
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(5)
Author: Birgit Walter
Robert Oster Caffe Crema
- Review Add on: 19-03-2025
- Average Rating: (5)
This ink is a perfect match for my TWSBI Eco Caffe and Espresso. It is a nice and saturated brown tone. It provides a constant ink flow and a smooth writing experience.
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(5)
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(5)
Author: Patrick
Ice with a hint of Fire
- Review Add on: 05-01-2025
- Average Rating: (5)
This is a very nice and well behaving ink but the fire part, that red sheen, is very subtle. For some that can be a negative, for me it is a positive because it occurs only occasionally it is more special and the more I enjoy it while using it.
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(5)
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Author: Lenie
Robert Oster Cafe Crema
- Review Add on: 10-11-2024
- Average Rating: (5)
I am so happy I puchased this ink. I love coffee + brown inks so this is a perfect combo. Ink is not dry. It compliments my Leonardo Furore Ginger fountain pen so much. Love it!
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Author: Yuriko Yamamoto
- Review Add on: 29-02-2024
- Average Rating: (5)
I purchased Evening Sapphire. I don’t know why but Robert Oster Inks have a special spark for me. It hits different than other brand inks. I love the dusky light blue color and the shading of this ink.















