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A comment on I used sound waves to make espresso. It could cut coffee‑brewing energy use by ¾. Parent comment

Re:I used sound waves to make espresso. It could cut coffee‑... by mminer237 on Tuesday June 23, 2026 @10:16AM (#48645346)
Eh, I think lattes are definitely the most popular drink at Starbucks and Dunkin.
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