The secret history of McDonald's Filet-O-Fish, which was almost killed from the menu before becoming one of the chain's staple sandwiches

McDonald's Filet-O-Fish Fast Food Fish Sandwich 8 McDonald's Filet-O-Fish Fast Food Fish Sandwich 8
When he first heard about the idea, McDonald's CEO Ray Kroc said, "I don't care if the Pope himself comes to Cincinnati. He can eat hamburgers like everybody else."
Hollis Johnson
  • McDonald's Filet-O-Fish sandwich — the first non-hamburger item added to the fast food giant's menu — went nationwide in 1965.
  • It was the brainchild of Cincinnati-based McDonald's franchise owner Lou Groen.
  • Groen came up with the idea when he discovered that the Catholic practice of abstaining from meat on Fridays was hurting his business.
  • At first, McDonald's CEO Ray Kroc hated the idea of "stinking up" the restaurant with fish.
  • He reconsidered when the Filet-O-Fish trounced Kroc's "Hula Burger" sandwich in a head-to-head contest.

Believe it or not, the Filet-O-Fish almost missed the menu.

Nowadays, the sandwich is iconic, and it's responsible for a whole bunch of piscine imitators. Business Insider's Mary Hanbury reported that the Filet-O-Fish is a massive hit during Lent, when many Catholics fast and abstain from eating meat on Fridays.

It's one of President Donald Trump's favorites, too. He's known to put away two of the fish sandwiches at a time, along with two Big Macs and a large chocolate shake.

But the sandwich's enduring success contrasts with its floundering start. Former McDonald's CEO Ray Kroc initially thought that he had bigger fish to fry when Cincinnati franchise owner Lou Groen first proposed the idea in 1962. 

Here's a look at the early history of the Filet-O-Fish, which owes its briny existence to Cincinnati-based Roman Catholics and the fact that most people don't find pineapple-and-cheese sandwiches all that appealing:

After seeing a McDonald's ad in a magazine, Groen opened his first golden-arched restaurant in Cincinnati in 1959. He also purchased the franchise rights for the city and northern Kentucky.

The city of Cincinnati.
Aaron Bernstein/Reuters

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McDonald's was far from the only burger joint on the block in those days, and the market was crowded and competitive.

McDonald's wasn't the only fast food joint in town back in the 1960s.
Yves Herman/Reuters

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Before the Second Vatican Council took place in the mid-1960s, Roman Catholics were supposed to abstain from eating meat on Fridays.

Roman Catholic Church
Catholics don't eat meat on Fridays during Lent.
Mark Baker/AP Images

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As it happened, Groen's hamburger-centric eatery happened to be located in a predominantly Catholic neighborhood.

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Worshippers at the Holy Cross Immaculata Church in Cincinnati.
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Groen's son Paul told "The List Show" that the restaurant was really beginning to struggle because his father 'wasn't doing any business on Fridays.'

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Groen's McDonald's was beginning to struggle.
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Meanwhile, the Cincinnati-based Frisch's Big Boy chain was clobbering McDonald's by offering a fish sandwich.

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The Big Boy chain competed with McDonald's for customers.
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In his memoir "Grinding It Out: The Making of McDonald's," Kroc wrote that the idea for the Filet-O-Fish was "born of desperation." Groen put together a prototype in 1961.

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Ray Kroc.
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But Kroc hated the idea. He described his initial reaction in his book: "Hell no! I don't care if the Pope himself comes to Cincinnati. He can eat hamburgers like everybody else. We are not going to stink up our restaurants with any of your damned fish."

Pope John XXIII, originally Angelo Giuseppe Roncalli
Pope John XXIII.
Keystone / Stringer / Getty Images


But McDonald's executives Fred Turner and Nick Karos disagreed. Groen ended up convincing them that he'd either need to start selling fish sandwiches or his store.

Kroc hated the idea of a fish sandwich.
Getty Images/Phil Walter


So Kroc relented, and food technologist Al Bernardin went to work planning out the new sandwich.

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Ray Kroc.
Bettmann / Contributor / Getty Images


McDonald's had to figure out factors like cooking time, breading type, and the thickness of the filet. After considering using halibut, the eatery went with cod.

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The Filet-O-Fish features cod.
Gerard Soury / Getty Images


But Kroc had a problem with the branding, which he said "brought back too many childhood memories of cod liver oil." Instead, they called it "North Atlantic whitefish."

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Kroc insisted that they rebrand cod.
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One of Groen's young employees sparked another innovation — adding cheese.

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The sandwich didn't initially call for a slice of cheese.
Yves Herman/Reuters

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Kroc followed suit and decided to try the sandwich with half a slice of cheese. He found it "delicious."

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Ray Kroc.
New York Times Co. / Contributor / Getty Images

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But the Filet-O-Fish still had one last hurdle to overcome. Kroc decided that he'd determine the sandwich's fate through a contest. The Filet-O-Fish would face off with his own idea, the Hula Burger.

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The sign in front of the oldest McDonald's in the world.
MediaNews Group/Orange County Register via Getty Images / Contributor

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The plan was that the Hula Burger, grilled pineapple and two slices of cheese on a toasted bun, and the Filet-O-Fish would be released in a few locations. Sales would determine the winner.

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Kroc's sandwich featured pineapple.
Henry Romero/Reuters

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The showdown came about on Good Friday 1962, according to Dann Woellert, author of "Historic Restaurants of Cincinnati: The Queen City's Tasty History."

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Customers loved the Filet-O-Fish.
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350 people bought Groen's new fish sandwich. Only six people purchased Kroc's creation.

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Kroc wrote that Groen often teased him about the Hula Burger's defeat. He added that he'd often still eat his "delicious" pineapple-and-cheese sandwich at 全民彩票苹果软件.

A statute of Ray Kroc with his garden hose outside a McDonald's in Chicago, Illinois
A statue of Ray Kroc.
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The fish sandwich had a limited debut in 1963, and was an immediate hit with customers. In 1965, McDonald's decided to add it to the menu nationwide, billing it "the fish that catches people."

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In 1965, the Filet-O-Fish went nationwide.
Mike Blake/Reuters


The item also ended up being a "cash cow" for Groen. In the years following the Filet-O-Fish's debut, he built 43 franchise locations in Cincinnati, hired 3,000 people, and began raking in annual sales of $60 million.

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Groen continued to succeed after introducing the Filet-O-Fish.
Jessica P./Yelp

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In his book, Kroc said he told Catholic members of his team: "You fellows just watch. Now that we've invested in all this equipment to handle fish, the Pope will change the rules."

Ray Kroc
Ray Kroc.

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He guessed right. After the Second Vatican Council ended in 1965, the Roman Catholic Church slackened its rules on fasting. Meat on Friday was allowed, except during Lent.

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The Vatican.
Alessandra Tarantino/AP

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SEE ALSO: I compared fish sandwiches from 4 major fast-food chains, and all of them were terrible except one

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