I know. I do it anyway.
Chemically, adding salt serves to make the boiled water hotter, temperature-wise.
You need 58 g salt to increase the boiling point of one liter water by 0.5 degree C - there is no reason to salt water for steaming
Adding salt to the water doesn’t change the temperature of the steam.
That is true, just like my original statement, which stands true on its own as well.
I like to add salt with the small amount of water that I use to steam . I want it to be like sea water. Next time I am thinking about adding kelp to the pot.
Kelp has aromatics that will perfume the steam.