EVS = 1 (Electrovalve steam -this can be either on = 1 or off = 0).
It controls preinfusion and is critically important. Set to 0 and NO steampreinfusion functions will work,
only bloom phase preinfusions.
Set to 1 and the machine will automatically select steam preinfusion if the steam boileris; on and above
115C. If left at 1, you can quickly switch between the two types of infusion as desired by switching the
steam boiler on or off, my preferred method.
Settings that affect Steam preinfusion
These settings directly control the pump run time prior to steam preinfusion. Any preinfusion time set in
LCC includes the time in seconds for the pump run. e.g if BLS1 is 3 and button 1 is set for a 10 second
preinfusion. The pump runs for3 seconds and stops for 7 seconds. During the time the pump stops the
pressure of the steam boiler is used tocontinue the preinfusion.
Values lower than 3 seconds increase the amount of superheatedwater in the brew boiler.
Values higher than 4 seconds start to push more water through the coffee and may not be optimal but
experiment.
BLS1 = 3 (Button 1 Steam preinfusion pump on time in seconds, 3 is recommended)
BLS2 = 3 (Button 2 Steam preinfusion pump on time in seconds, 3 is recommended)
Note: The reason 3 or 4 seconds is advised for this function is to significantly reducethe amount of
superheated waterentering the brew boiler.You are mainly tryingto fill the head space above the
coffee before the pump stops, after which steam pressure takes over. The pushof steamallows afew ml
into the brew boiler but it does not affect brew boiler stability.
These settings directly control the pump run time prior to bloom preinfusion. Any preinfusion timeset in
LCC includes the time in seconds for the pump run. e.g if BLP1 is 5 and button 1 is set for a 12 second
preinfusion. The pump runs for5 seconds and stops for 7 seconds. During the time the pump stops no
pressure is applied and the coffee is left to soak (bloom). This can extractextraand interesting flavours.
Note: you may opt for a lower value for a singlebasket and a higher valuefor a double. If you use less
than 4 you won’t get a great bloom phase. The objective is to get the coffee puck perfused with some
brew water before the pump stops for the “bloom phase”