Sunbeam EM7100 - Espresso Extraction Dynamics; Required Espresso Pressure; Espresso Temperature Control; Twin Pump & Thermoblock Operation

Required Espresso Pressure
The15BARItalianpumpproducesthe
requiredpressureforbrewingespresso
consistently.Fittedwithapressurerelief
systemwhichensuresthatanyremaining
pressureaftertheextraction,isreleasedinto
thedriptray;allowingforquick,successive
brews.
Espresso Temperature
Independentthermoblockheatingsystems
arelinedwithstainlesssteelandfitted
withPIDtechnology.ThePID(proportional
integralderivative)technologycontrols
thethermoblocktodeliverprecisewater
temperature,ensuringaconsistentbrew
everytime.
Twin Pumps & Twin Thermoblocks
Truetocommercialuse,theuniquetwin
pumpsandtwinthermoblocksallowthe
coffeemakertotexturemilkandpouran
espressosimultaneously.
Espresso Gauge
Theespressogaugeisanindicatorofthe
qualityoftheespressopourandshouldbe
usedasaguide.
Itmeasuresthepressureorresistance
createdbywaterbeingpumpedthroughthe
tampedcoffeegrindsinthegrouphandle.
Whilsttheneedleiswithinthetargetareaon
thegaugeitindicatesthataqualityserveof
espressohasbeenmade.Thisisindicatedby
aslow,butflowingpourofespressowitha
consistencysimilartothatofdrippinghoney.
Thecremashouldbedarkgoldenincolour.
Shouldtheneedlefailtoreachthetarget
areathisisanindicationthattheserveof
espressois‘under-extracted’.Thisoccurs
whenwaterpassestooquicklythroughthe
tampedcoffeegrindsandisanindication
thateitherthegrindistoocoarse(sothe
waterflowsstraightthroughthegrinds)or
thefilterbaskethasbeenunder-dosed.The
pourisquickandlightincolourandthe
resultingcremaisthinwithacreamylight
browncolour.
Whentheneedlegoesbeyondthetargetarea
itisanindicationthattheserveofespresso
is‘over-extracted’.Thisoccurswhenthe
waterpassesveryslowlythroughthetamped
coffeegrindsandisanindicationthateither
thegrindistoofine(sothatitisdifficultfor
thewatertopassthrough)orthefilterbasket
hasbeenover-dosed.Inthissituationthe
hotwaterisincontactwiththecoffeegrinds
fortoolongthuscreatingaburntandbitter
tastingespresso.Thisischaracterisedby
theespressoonlyslowlydrippingduringthe
entirepourandthecremaisverydark.
5
Features of your Café Series
®
Espresso Machine continued
Over
Extracted
Pour
Optimum
Pour
Under
Extracted
Pour