Sandustry Residue Guide
Quick Answer
Residue is the guaranteed output when a Shaker processes Wet Sand. Keep it separate from Gold, then burn it to attempt the Burnt Residue step.
Collect it above the Shaker
Residue stays above the Shaker while Gold passes below. Keep the upper outlet open because a blocked guaranteed output can stop fresh Wet Sand from reaching useful processing space.
Build a visible burn chamber
Move Residue away from the Shaker before applying Fire. Burning is probabilistic, so keep the chamber visible and do not size the next module as if every Residue pixel survives.
Send only Burnt Residue to the Press
Collect surviving Burnt Residue separately and route it to a clear vertical shaft. The next conversion requires enough fall distance before it hits the Kinetic Press.