My eldest needs a journal as a prop for a play. The play is set in the 1920s and we didn't want bright white crisp paper in the leather bound journal (I'll get to the assembly of the journal in another post). I searched the internet and only came up with tea and coffee stains (and one that recommended burying the paper in the ground for two weeks). I needed eighteen sheets of paper aged; and the paper won't hold up to handling when wet (we tried the tea method, no go). We also tried using a flame to slightly singe the paper, which was also time consuming with spotty (literally) results. I remembered a science experiment with invisible ink made from lemon juice. Could that work to slightly brown the paper? Yes, yes it can.

Aged paper folded into signatures (left) versus original paper (far right)

The method I found that worked best was to heat the oven to 350 degrees F, put a large cookie sheet in the oven, lay one piece of paper on the cookie sheet and mist it with a 50/50 mixture of lemon juice and water, and leave it in the oven for 3 minutes. I then flipped the paper over, misted again, and baked for 3 more minutes. An eye cleaner spray bottle works great for mist. The technique also wrinkles up the paper, so I needed to give the sheets a quick iron to get it to lay a little more flat. The results were exactly as I hoped! Now to finish the cover so I can assemble the journal.