Shadowing Practice: How many germs are killed by toasting bread? | But Why Bites - Learn English Speaking with Video

Creating lesson...
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When you put toast in the toaster, what's the normal estimate of how much germs it kills?
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I've got bad news and good news for you, Malcolm.
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The bad news is that despite searching high and low, we couldn't find a good estimate for exactly how many germs a normal, non -moldy piece of bread might have.
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So it's really hard to know how many germs are killed by toasting it.
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But we can still make some educated assumptions.
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That's the good news.
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Germs are everywhere, so there are definitely some on your bread.
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That doesn't mean it's necessarily going to harm you, though.
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Some germs are pretty mild, and our bodies have built up lots of defenses to fight off things that could make us sick.
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Now toasting your bread does do some extra good when it comes to neutralizing pesky bacteria.
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The higher the temperature, the more surface bacteria will be killed off.
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So if you're toasting your bread enough for it to turn golden brown, that's a good start.
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And throw away your bread if it has any visible mold on it.
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But here's the key.
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Your toast could be clean as can be.
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And it does no good if you pick it up with dirty, germy hands.
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You can transfer germs from your hands to your toast to your mouth pretty easily.
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So whether you're toasting or not, the best thing you can do to avoid the germs that might make you sick is wash your hands before you eat.
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I'm trying to learn more about But Why, and this is our full episode, but at butwhyacase .org.

Who Will Benefit from This Video?

This video is perfect for intermediate English learners curious about everyday science and looking to practice listening and speaking. Its conversational tone and clear explanations make it ideal for those working on understanding natural speech patterns, while the topic—germs and toasting bread—is relatable, keeping you engaged as you learn. Whether you’re aiming to improve your comprehension or practice shadow speech (repeating phrases aloud as you hear them), this short clip offers a low-pressure way to build skills.

Words & Idioms Worth Stealing

  • Searching high and low: Looking everywhere. Example: "I searched high and low for my keys."
  • Educated assumptions: Guesses based on knowledge. Example: "We made educated assumptions about the weather."
  • Neutralizing pesky bacteria: Killing annoying germs. "Pesky" means annoying; "neutralizing" here means making harmless.
  • Clean as can be: Extremely clean. Example: "Her room is clean as can be."

How to Get the Accent Right

The speaker uses a friendly, conversational tone with relaxed pronunciation—great for practicing shadow speak. Notice how "germs" is pronounced with a soft "g" and a short "er" sound (like "jerms"). Pay attention to the rhythm: phrases like "the bad news is that" flow smoothly, with stress on "bad" and "news." To practice, try shadowing the question "How many germs are killed by toasting bread?"—focus on the rise in pitch at the end, typical of questions. Also, listen for the reduced "t" in "couldn't" (sounds like "couldn") and "don't" (sounds like "dohn"). Mimicking these details will help you sound more natural. Remember, shadowspeak is about copying not just words, but the music of the language—so don’t rush, and let the speaker’s pace guide you.

Learning English with videos like this one makes practice fun. By combining interesting content with shadow speech exercises, you’ll improve your pronunciation and comprehension without even realizing it. So hit play, listen closely, and start speaking along—your fluency will thank you!

Grammar in this video

The structures the speaker uses most, with the exact words from the video:

StructureIn the video
Passive voice be + past participle — the focus is on what happens, not who does itare killed · will be killed
Present perfect have/has + past participle — a past action that still matters nowhave built
Possibility with “might / may” might/may + verb — something that is possible but not certainmight have · might make
Superlatives the -est / the most … — the top or bottom of a groupthe best

What is the Shadowing Technique?

Shadowing is a science-backed language learning technique originally developed for professional interpreter training and popularized by polyglot Dr. Alexander Arguelles. The method is simple but powerful: you listen to native English audio and immediately repeat it out loud — like a shadow following the speaker with just a 1–2 second delay. Unlike passive listening or grammar drills, shadowing forces your brain and mouth muscles to simultaneously process and reproduce real speech patterns. Research shows it significantly improves pronunciation accuracy, intonation, rhythm, connected speech, listening comprehension, and speaking fluency — making it one of the most effective methods for IELTS Speaking preparation and real-world English communication.

Shadowing technique: read the full step-by-step guide →