2

Does anyone use this amazing apparatus?

I'm wondering if you can pour cold water in it and get a hot espresso (which, well, should be hot by definition)? If so, how does the heat come about?

Improve this question

1 Answer 1

Reset to default
2

Well according to the video presented on the website you have to provide hot water.

To my understanding of the machine's principle as well as physics there is absolutely no way it could produce hot coffee from cold water. The confusing quote from the FAQ

Minipresso produces at ambient condition (75°F, 24°C), an espresso at perfect temperature (152°F, 67°C in cup) with a nice compact and persistent crema on top.

actually is about temperature loss during the process.

Improve this answer
8
  • Can you elaborate on what you mean by temperature loss?
    – Suspended User
    Apr 28, 2015 at 20:41
  • The water loses the temperature by heating its containers.
    – Lamorak
    Apr 28, 2015 at 21:12
  • That makes sense, although one would expect some offset of that with the increased pressure.
    – Suspended User
    Apr 28, 2015 at 21:50
  • 1
    We are talking about liquid, the pressure does not considerabely affect the temperature. Not as much as with gases.
    – Lamorak
    Apr 28, 2015 at 21:55
  • 1
    You are overthinking it :) the temperature change caused by pressuring the air does not really matter
    – Lamorak
    Apr 29, 2015 at 6:13

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct.

Not the answer you're looking for? Browse other questions tagged or ask your own question.