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Modifications apportées à l'étape #9

Modifié par Andrew Bookholt —

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Lignes de l'étape

-[* black] We will now focus on tearing down the heart of the Barista: the boiler.
+[* icon_note] We will now focus on opening the heart of the Barista: the boiler.
[* black] Remove the four hex bolts securing the brew head to the boiler assembly.
[* black] Lift the brew head off the boiler.
+[* red] Remove the single Phillips screw securing the perforated plate and gasket to the boiler housing.
+ [* black] The perforated plate spreads out the boiling water/steam to evenly brew the ground coffee held in the basket.
+[* black] Use a a large standard screwdriver (we used a washer and a pair of pliers) to remove the one-way valve spring retainer from the bottom of the boiler.
+ [* icon_note] The one-way valve spring is tuned to only allow the valve to open when the pressure reaches a certain level coordinating to the perfect temperature for brewing espresso.