is mixing fountain pen inks dangerous

How Dangerous Is Mixing Fountain Pen Inks?

John BosleyFountain Pen Ink 31 Comments

I’ve always heard that it’s dangerous to mix fountain pen inks. Some people have had the experience of mixing inks, only to have solids, or a precipitate form, which can potentially clog a fountain pen. I am usually very careful about completely cleaning out my pen before using a new ink. The main reason for this is that I don’t …