Why must I add salt to boiling water, for hot cereal, etc?
I've always ignored this instruction, but I'm curious as to why it's needed.
Adding salt can increase the temperature that the water will boil but you would have to add a lot of salt for it to be a noticable difference. It is generally just added for the flavor.
It makes it boil faster.
You do not need to add it. I never do. Really makes no difference.
For flavor. Its just bland without salt.