was there a tecnique for how you weathered the pages? when i tried the coffee method it just smudged the ink everywhere. Maybe you printed with a laser printer opposed to inkjet?
If you use an inkjet, you’ll need to either find a waterproof ink or you need to pre-age the paper if you use a wet coffee process. Otherwise, as you’ve unfortunately found out already, it’ll make a normal ink bleed on the page. Best bet is to stick with a laser printer or photocopier (something with toner).
If you do pre-age the paper, be sure to get it really really flat before you feed it through the printer or else it can lead to jams. (I know this from many many instances of it.)