The phrase "salty taste" means the taste that we experience when we eat something that has salt. It's a flavor that is similar to what salt tastes like. Full definition
It does have a slightly salty taste if you get the plain one — just FYI. (thebettyrocker.com)
Along with proposed innate factors, prenatal developmental events appear to influence infant and child preferences for salty tastes. (journals.lww.com)
Among the kosher salts out there, though, there's a big difference in the size and shape of the salt crystals and therefore a difference in how salty each tastes by volume. (bonappetit.com)