THE FACT ABOUT BIBO CRYSTAL THAT NO ONE IS SUGGESTING

Hygroscopic crystal materials deteriorate when they are not constantly saved in sufficiently dry air (or even a dry purge fuel). This is applicable e.g. to KDP and BBO, As well as in a lesser extent to LBO. It might be beneficial to maintain this kind of crystal at a rather elevated temperature, that makes it easier to preserve it dry.Kingwin Optic