Expulsion of parasitic organisms

Exploration Stage: Crystal Mine
From: Vera
Description: Crystals can be cleaned with salt. The same method should be able to remove parasites from anti-fog crystals. Now we need to prepare a special saline solution. We need a special container for it, because a normal container will corrode. Can you find one for me?
Completed: This container is perfect. The brine won't spoil and the silver plating won't come off. I'm sure the parasitic ores would not like the brine!