pas·​teur·​ize | \ ˈpas-chə-ˌrīz How to pronounce pasteurize (audio) , ˈpas-tyə- How to pronounce pasteurize (audio) , -tə- How to pronounce pasteurize (audio) \
pasteurized; pasteurizing

Definition of pasteurize

Keep scrolling for more

Other Words from pasteurize

pasteurizer noun

Examples of pasteurize in a Sentence

Recent Examples on the Web Most companies pasteurize their juices with high heat to destroy bacteria and prolong shelf life. New York Times, "Greg Steltenpohl, Pioneer in Plant-Based Drinks, Dies at 66," 19 Mar. 2021 Some pasteurize fluid milk, while others take raw milk and turn it into cheese, butter or ice cream. Danielle Wiener-bronner, CNN, "Why dairy farmers across America are dumping their milk," 15 Apr. 2020 Once fermented, the yeast is harvested, washed, pasteurized and dried. Becky Hughes, New York Times, "Nutritional Yeast Is for Hippies. ‘Nooch’ Is for Everyone.," 8 May 2020 Typical backyard soil is too compacted, full of weed seeds and it is not pasteurized, causing seedling diseases and death. oregonlive, "How to make your own seed-starting mix and plan for gardening days ahead," 17 Jan. 2020 The nonprofit will prepare and pasteurize the milk and distribute it to where it is needed most, said Nicole Robbins, education and outreach specialist for the organization. Cathy Kozlowicz, Milwaukee Journal Sentinel, "Froedtert Menomonee Falls Hospital will soon be a collection spot for breast milk," 12 Feb. 2020 Cheddar, Manchego, and blue cheeses are readily available in both raw and pasteurized form. Liz Thorpe, Bon Appetit, "Wait, So What Cheese Can You Eat While Pregnant?," 23 Apr. 2018 Officially, parents can go to a milk bank to buy donated breast milk that has been screened and pasteurized—but this requires a doctor’s prescription and can go for a hefty $4 or $5 an ounce to cover processing costs. Sarah Zhang, The Atlantic, "A Bold and Controversial Idea for Making Breast Milk," 27 Feb. 2020 And because it’s not pasteurized in the canning process, homemade sauerkraut retains all of its probiotic benefits. Paul Stephen,, "5 tasty cabbage dishes that have nothing to do with corned beef," 4 Mar. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'pasteurize.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of pasteurize

1881, in the meaning defined above

History and Etymology for pasteurize

Louis Pasteur

Keep scrolling for more

Learn More about pasteurize

Time Traveler for pasteurize

Time Traveler

The first known use of pasteurize was in 1881

See more words from the same year

Statistics for pasteurize

Last Updated

3 Apr 2021

Cite this Entry

“Pasteurize.” Dictionary, Merriam-Webster, Accessed 13 May. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

Keep scrolling for more

More Definitions for pasteurize


pas·​teur·​ize | \ ˈpas-chə-ˌrīz How to pronounce pasteurize (audio) , ˈpa-stə- \
pasteurized; pasteurizing

Kids Definition of pasteurize

: to keep a liquid (as milk) for a time at a temperature high enough to kill many harmful germs and then cool it rapidly

Other Words from pasteurize

pasteurizer noun


transitive verb
variants: also British pasteurise \ ˈpas-​chə-​ˌrīz How to pronounce pasteurize (audio) , ˈpas-​tə-​ How to pronounce pasteurize (audio) \
pasteurized also British pasteurised; pasteurizing also British pasteurising

Medical Definition of pasteurize

: to subject to pasteurization

Other Words from pasteurize

pasteurizer also British pasteuriser noun

Comments on pasteurize

What made you want to look up pasteurize? Please tell us where you read or heard it (including the quote, if possible).


Test Your Vocabulary

Star Wars Words Quiz

  • cu jedi training
  • The bounty portion of bounty hunters (such as Boba Fett) comes from a Latin word meaning
True or False

Test your knowledge - and maybe learn something along the way.

Universal Daily Crossword

A daily challenge for crossword fanatics.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!