I do not recommend doing this.
Each time I washed it salt would recrystallize as it dried, so after 3 washes I decided to soak it in a lot of water which resolved that.
Then I went to use the salt and without any salt build up it poured out way quicker and ruined my breakfast.
Never tried that
I don’t have issues with clumping, but I do salt boiling water so there was buildup around the holes.
I just washed it because the shaker top was looking gross.
Salty buildup around ones holes is never good.
The solution (heh) here is to pour some salt into a dish or your hand for salting the water, instead of exposing the shaker to steam.