Ferrite must be stored in a dry, ventilated environment, otherwise the humid environment will soon make it rust. Meanwhile, the ferrite storage temperature environment must not exceed the maximum operating temperature of ferrite, otherwise it will lead to product demagnetization. Usually Ferrite don't have coating, in order to prevent it from rusting, we can coat the surface of the magnet with rust preventive oil. Magnetized ferrite must stay away from magnetic tape, computer screens, watches and other objects susceptible to magnetic influence, because the magnetic influence of these items may cause it not work.
And because the ferrite texture hard and fragile brittle, when transport, assembly, etc. should try to avoid squeezing, because any improper handling can cause magnet broken or damaged. Note that, ferrite (ceramic) during transport must be separated from the magnetic treatment, especially when the need for air transport is completely separated from the magnetic to avoid accidents.