Ever since President Ronald Reagan and Congress proclaimed March 6, 1984, as “Frozen Food Day,” Americans have unofficially celebrated their favorite frozen treats on March 6 each year.

So how will you celebrate Frozen Food Day? If you’re like many Americans, a frozen pizza may be in your dinner plans.

Today, most of us take frozen food for granted. As long as we can remember, the frozen food aisle in the grocery store has been filled with tempting treats for every meal and even snacks in between.

For centuries, though, most food was eaten fresh within just a few dozen miles of where it was grown or raised.

Exactly how did frozen food come about? Improvements in technology, transportation and communication over the years revolutionized agriculture.

Today, foods can be preserved and distributed quickly around the world. It all started with a man named Birdseye.

Wishing his family could eat fresh food all year, Clarence Birdseye observed that the people of the Arctic preserved fish and meats in barrels of sea water, which were quickly frozen by the frigid Arctic temperatures. In 1923, Birdseye invested $7 in an electric fan, buckets of brine and a lot of ice.

With a bit of trial and error, he eventually invented a method for flash-freezing food products in convenient packages without altering their taste. Flash-frozen vegetables, fruits and meats were first sold to the public in 1930 under the name Birds Eye Frosted Foods®.

Today, one of the most popular frozen treats in any grocery aisle is the frozen pizza. Would you believe, though, that the popularity of frozen pizza is a relatively new phenomenon?

Although pizzerias existed in America as early as 1890, pizza wasn’t popular until after World War II, when soldiers returning from Italy craved the pizza pie they’d eaten overseas. When home freezers became commonplace after the war, some pizzerias started selling unbaked frozen pies.

The problem, though, was that the pizza dough was soggy and the toppings lacked flavor. Pizza chefs trying to make a good frozen pie faced two problems: ice crystals and interrupted chemical processes.

Thanks to Birdseye’s flash-freezing process, these problems were soon overcome. Birdseye’s flash-freezing process prevented ice crystals from forming and helped the toppings retain their flavor.

No one knows for sure who came up with the first frozen pizza. In the 1950s, Celentano Brothers became the first brand of frozen pizza to be marketed nationally. Many claim that the first big name in the business, though, was Totino.

In 1951, Rose and Jim Totino opened one of the first pizzerias in Minneapolis, Minnesota. When their business boomed, they decided to try manufacturing frozen pizzas. By the late 1960s, Totino’s had become the best-selling frozen pizza in the country.

Even as recently as the 1980s, though, frozen pizzas were a distant second to fresh, hot pizzas delivered from the local pizzeria. Food scientists eventually developed new types of dough and processes that changed everything.

Modern “rising crust” frozen pizzas debuted in the 1990s, and the frozen pizza industry saw sales go from $1 billion per year in 1995 to more than $5 billion per year today.

Interesting pizza facts:

  • Today, Americans eat more than 2 billion slices of frozen pizza each year.
  • More than 350 million tons of frozen pizzas are sold every year.
  • The average American family eats pizza at home 30 times a year, or more than once every two weeks.
  • Americans eat about 3 billion pizzas each year, which equals about 350 slices per second!
  • Pepperoni is America’s favorite pizza topping.


18 Join the Discussion

1 Star2 Stars3 Stars4 Stars5 Stars  (21 votes, avg. 4.10 out of 5)
    • Different people (who like and don’t like different things) make the world a REALLY AWESOME place to live, Sunshine! We think it would be pretty boring if we all enjoyed the same exact things, don’t you? Have a TERRIFIC day! :-)

    • Welcome to Wonderopolis, Eric! Thanks so much for visiting this Wonder of the Day® about frozen pizza! We agree…learning the “how” and “why” of things is a lot of fun! :-)

    • Hi, Kaley! Thanks so much for leaving us this GREAT comment! Pizza is a favorite food of MANY Wonder Friends! There are so many different kinds of crusts with so many awesome topping options, that it’s hard NOT to love it! :-)

  1. This article was pizza-tastic! Thank you for making it, wonderopolis! P.S. You should tell how to make pizzas out of English muffins!

    • English muffin pizzas are AWESOME, Pizza Boy! Thanks for sharing that you liked this Wonder and thought it was pizza-tastic! We really like that adjective! :-)

    • Hey there Mark C! We like frozen pizza, too, but we Wonder if your taste buds would get bored with frozen pizza every day? Do you have any other favorite foods to add to the list? :)

  2. Hi, Wonderopolis. We really liked this wonder. I learned we celebrate frozen food day on March 6th. Have a wonderful day.

    • We are so glad to have you WONDERing with us today, Allison and Kaitlyn! We love frozen pizza! Too bad, we missed frozen food day. However, we can have frozen pizza today or tomorrow. Keep WONDERing, Wonder Friends! :-)

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Have you ever wondered…

  • Who created frozen pizza?
  • Who invented the flash-freezing process to create frozen foods?
  • What is the most popular pizza topping?

Wonder Gallery

pizza_shutterstock_40828648Vimeo Video

Try It Out

Are you hungry now? We are! Why don’t you set some time aside to cook dinner together tonight?

Grab a frozen pizza, and let the entire family turn it into a gourmet experience. All you need is a simple pepperoni or cheese frozen pizza to start with.

Then grab other ingredients from the refrigerator. What does everyone like? Onions? Green peppers? Tomatoes?

Follow these instructions to turn that plain frozen pizza into something any pizzeria would be proud to serve. Buon appetito!


Still Wondering

To hone children’s math skills, check out the Pizza, Pizza unit from Illuminations, which focuses students on gathering, representing and interpreting data about pizza choices.


Wonder What’s Next?

Swing on by Wonderopolis tomorrow and pull up a plate! If you’re still hungry, tomorrow’s wonder holds the promise of hot dogs and popcorn.

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