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Alex Duetto Manual Preinfusion Trick
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benm5678
Senior Member
benm5678
Joined: 4 Aug 2008
Posts: 109
Location: earth
Expertise: I like coffee

Posted Sat Jan 23, 2010, 7:49am
Subject: Alex Duetto Manual Preinfusion Trick
 

hey guys
just noticed a neat option with the duetto, wonder if others do this:

with the machine plumbed in, and the lever in mid position, there's no water flow....
but if u just keep lifting it a tiny a bit, water starts flowing from line pressure, without activating pump.

i've tried 2 shots so far, giving it 10 sec of preinfusion.... the shots pulled were 'picture perfect', beading evenly from start, and streaming nicely centered until end & of course, more importantly, resulted in great espresso!

cool!  something else to play with :)  i'd say i usually get 50% of the shots to pull like this... if this brings up the percentage i'll be very happy.

Ben
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