LANDOVER, Md. — In defending their work, members of Congress love to repeat a quotation attributed to Otto von Bismarck: “If you like laws and sausages, you should never watch either one being made.”

In other words, the legislative process, though messy and sometimes unappetizing, can produce healthy, wholesome results.

But a visit to a sausage factory here, about 10 miles from the Capitol, suggests that Bismarck and today’s politicians are mistaken. In many ways, that quotation is offensive to sausage makers; their process is better controlled and more predictable.

“I’m so insulted when people say that lawmaking is like sausage making,” said Stanley A. Feder, president of Simply Sausage, whose plant here turns out 60,000 pounds of links a year.