Tintenlabor Alpstein — Ink Review #200
Tintenlabor - Alpstein Ink Review # 200 Originally posted on FPN: Aug 27, 2025 --- 🧾 Description Ink: Tintenlabor - Alpstein Available: 30/50 ml bottle. Pens Used: Pilot Kakuno EF, Kaweco (EF/F/M/B/ Stub 1.9) , Karas Vertex FPnibs full flex ebonite extra wet feed. Tintenlabor is a Swiss ink company specializing in Iron Gall inks. What differentiates this ink from other brands is that you would know the iron content. The samples were sent to me by the Ink-Meister, David. Alpstein is an ink for Iron gall weary. It has only 1 g/L of iron content, compared to the 3/4/5/6 g/L for other inks. It mimics the limestone peaks of Alpstein mountain range in northeastern Switzerland. It has a dry flow, below average lubrication and it would benefit either from a wet pen or soft nib. Ink is pencil grey. It had difficulty to keep up with the wet ebonite feed from the Karas Customs wit...