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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 crazygringo on Saturday June 20, 2026 @11:07PM (#48615306)
This is not true.

A standard iced coffee is just regular brewed coffee that is then put in the fridge. (Which is different from cold brew which is brewed in the fridge.)

Absolutely not espresso-based.

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