Is it safe to use old fountain pen inks vintage bottles

Is It Safe To Use Old Fountain Pen Inks?

John Bosley Fountain Pen Ink 9 Comments

The question always comes up, “Is it safe to use old ink in my fountain pens?” The answer: It depends. As you’ll find out below, there are certain things to be aware of when using vintage inks, including mold, sediment and evaporation. But those warnings apply to both vintage and modern inks. With that being said, the majority of old …