Firms are adept at using these rewards to encourage long-term loyalty: people work in the salt mines for years in the hope of becoming partners or senior managers.
At the company’s laboratories in Battle Creek, Mich., a Kellogg vice president and food scientist, John Kepplinger, ticked off the ways salt makes its little square cracker work.
在密歇根州巴特尔克里克（Battle Creek, Mich.） 的公司实验室里，一位家乐氏的副总裁和食物科学家约翰·凯普林格(John Kepplinger)列举出盐使它的小方形饼干成功的方法。