Buffalobuffalo comments on I used sound waves to make espresso. It could cut coffee‑brewing energy use by ¾

I used sound waves to make espresso. It could cut coffee‑brewing energy use by ¾ (theconversation.com)

submitted 4 months ago by rssbot@lemmy.bestiver.se [B] to c/hackernews@lemmy.bestiver.se

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[–] Buffalobuffalo@lemmy.dbzer0.com 1 point 4 months ago

One cup of coffee or 38 tokens?

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