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I used sound waves to make espresso. It could cut coffee-brewing energy use by 75% (theconversation.com)
submitted 3 months ago by to c/environment@aussie.zone
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🍵 😮

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[–] 1 point 2 months ago

The video that I watched? It was from How to Drink, which iirc he said he decided to try and make his video after watching a video that talked about speeding up extracts via ultrasonic cleaner, but I don't recall what he said what was the video he watched.

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