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Two men in a lab examine a small jar of brown liquid at the Ben & Jerry’s factory, discussing how food waste is processed for energy recycling.

How can leftover ice cream be turned into clean energy?

How Ben & Jerry’s Is Recycling Food Waste into Energy

August 5, 2025

How Ben & Jerry’s Is Recycling Food Waste into Energy

Ask students: Where does Ben & Jerry’s send its food waste instead of sending it to landfills?

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Note: If you are short on time, watch the video and complete this See, Think, Wonder activity: What did you notice? What did the story make you think about? What would you want to learn more about?

It may sound like the stuff of sci-fi movies, but diverting food waste from the landfill and converting it into electricity has become a real thing. William Brangham visited Ben & Jerry’s Vermont ice cream factory and the operations next door to find out how it works.

View the transcript of the story.

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Discussion Questions

  1. Who has to figure out what to do with the waste ice cream products?
  2. What produces methane, a greenhouse gas and contributor to climate change?
  3. Where does Ben & Jerry’s send its food waste instead of sending it to landfills?
  4. When in the alternative process of waste management does waste turn into electricity?
  5. How is the alternative process beneficial, beyond just producing electricity?

Focus Questions

What role do businesses play in helping their communities transition to more clean and sustainable practices?

Media literacy: Why is it important to seek out multiple sources before forming an opinion on a topic like this?

Extension Activity

Using this News: Then & Now section based off of News Hour's Journalism in Action website, a project supported by the Library of Congress, which allows students to engage with a more dynamic display of how communities address civic issues over time, inviting them to consider their ability for intervention in their own context.

Side-by-side comparison showing “Then” and “Now.” On the left, a vintage poster encourages children to join the U.S. School Garden Army during wartime. On the right, a modern diagram illustrates anaerobic digestion, showing how food waste is converted into biogas (methane and carbon dioxide).

  • Then: Students joined the School Garden Army during WWI to reduce waste and encourage locally grown food.
  • Now: Ben & Jerry's food waste is responsibly turned into reusable energy through anaerobic digestion, reducing the release of greenhouse gases, a contributor to climate change.

Consider: Using the Then & Now comparison, how have our approaches to sustainability changed over the years? Why was it important then to grow locally? Why is it important now to employ greener practices?

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Republished with permission from PBS News Hour Classroom.

PBS News Hour Classroom
PBS News Hour Classroom helps teachers and students identify the who, what, where and why-it-matters of the major national and international news stories. The site combines the best of News Hour's reliable, trustworthy news program with lesson plans developed specifically for... See More
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