How to Make Iron Gall Ink for Fountain Pens

Iron gall inks are still used in some places for example in British law When you sign a contract or certain kinds of legal documents, they want that signature not to go away So they use these iron gall inks which over time destroy their pens It's hard on fountain pens so they have to use a bunch of those That's kind of hilarious. I've seen a note on the internet when i was looking for recipes for For making ink yourself once and that you shouldn't actually put iron gall ink into fountain pens Because they'd clog up And also corrode obviously. The longer an iron gall ink is exposed to air the more um, iron particles precipitate out so Um For other kinds