Zeolite crystal drying is typically performed through controlled heating. The zeolite crystals are exposed to high temperatures (usually between 150°C to 300°C) in an oven or furnace. This heat drives off the moisture and other adsorbed compounds from the crystal’s pores. For more delicate applications, the drying process may be done under vacuum or in a dry nitrogen atmosphere to protect the zeolite from degradation. This restores the zeolite’s full capacity to adsorb moisture or gases.