It is best to keep it in a resealable bag to help keep in the scent and protect it from dirt and dust.
Our flax wraps are not washable. If you get them wet, the flaxseed will get mushy and may not dry out properly, resulting in it sprouting – yes, sprouting! Your best bet would be to empty the flaxseed into your compost and purchase a new wrap if you get it wet or soiled.
Just like for cellphones and gremlins, the limited warranty does not cover water damage.