Some people have heard a rumor that adding salt to the beans while cooking them make the cooking time longer. However, according to this article from u003cstrongu003eu003ca href=u0022https://www.seriouseats.com/salt-beans-cooking-soaking-water-good-or-badu0022 target=u0022_blanku0022 rel=u0022noreferrer noopeneru0022u003eSerious Eatsu003c/au003eu003c/strongu003e this is not true. In fact, adding salt provides much needed flavor to the beans.