By waterless, they mean waterless! All moisture has been completely extracted from these foods. You supply the fluids with your own spittle.

If everything tastes dry, that's just your unsophisticated Amercan Palate. Come, let us see how they eat in other countries, where everything is better because they do not have television and other useless things to distract them from what really matters in life, which is the study of its meaninglessness.