<p>The best way to control of shot extraction without adding excessively complicated electronics (if by PID you mean proportional-integral-derivative controller) is:</p>

<ul>
<li>How fine is the bean grounding (the finer the grounding, the higher the density -> the slower the extraction).</li>
<li>Applied pressure on the grounded beans in the machine group head (the higher the pressure applied (similarly) -> the slower the extraction).</li>
<li>pressure and temperature are also important parameters to be concerned before moving to PID control (for example your extraction time/lenght could be longer but if the temperature of the water is low, there won't be excessive essential oil extraction). </li>
</ul>

CC BY-SA 3.0
2015-05-21T22:11:51.597Z
2015-05-21T22:11:51.597Z
Ziezi
<p>Wanted to know if anyone has a really good, possibly verified method of controlling shot preparation and extraction with an unmodified Gaggia Classic espresso machine.  I don't have, nor do I want to add a PID.  </p>

<p>So, what is your method?</p>

<brewing-process><espresso><temperature><extraction><tamping>
Ideal Way to control shot extraction with Gaggia Classic
Steven Vaccaro
# Ideal Way to control shot extraction with Gaggia Classic

(Asked by: username_0 on 2015-05-21)

Wanted to know if anyone has a really good, possibly verified method of controlling shot preparation and extraction with an unmodified Gaggia Classic espresso machine. I don't have, nor do I want to add a PID.

So, what is your method?

**Tags:** brewing-process, espresso, temperature, extraction, tamping


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## 1 answers

### Answer by username_1 on 2015-05-21. Score: 2

The best way to control of shot extraction without adding excessively complicated electronics (if by PID you mean proportional-integral-derivative controller) is:

* How fine is the bean grounding (the finer the grounding, the higher the density -> the slower the extraction).
* Applied pressure on the grounded beans in the machine group head (the higher the pressure applied (similarly) -> the slower the extraction).
* pressure and temperature are also important parameters to be concerned before moving to PID control (for example your extraction time/lenght could be longer but if the temperature of the water is low, there won't be excessive essential oil extraction).


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