Ha, we actually don’t eat pasta but it was the best example that came to mind. Friends would add pasta to soups, eliminating any waste water. We have an overland friend that came from the boating world and she would long soak rice removing the need to cook it. A little too hardcore for us.We stopped using a large pot of water for cooking pasta, just a small amount that is almost gone by the time the pasta is done. Comes out quite well, especially if you add a good amount of sauce anyway.