: Some photographers use "Old Brown" (used and oxidized lith developer) to "seed" a fresh batch, which helps stabilize the development process and produces more predictable "mature" tones.
Submerge the paper in a tray of the liquid for 3–10 minutes depending on the desired darkness. mature over
Allow excess liquid to drip off, then air dry or bake in an oven at roughly 200°F for 5–10 minutes for a "crispy" texture. : Some photographers use "Old Brown" (used and
: Carefully singe the edges with a lighter or candle to create a charred, "rescued from fire" look. : Carefully singe the edges with a lighter
Developing paper to look "mature" or aged is a creative process often called "distressing" or "aging" paper. You can achieve this effect using common household items to mimic the natural yellowing, staining, and wear that occurs over decades. Methods to Age Paper
Can lith developer mature with non-lithable paper? - Facebook