Cooling flush of a (HX) Heat Exchanger Machine
In the last month I have been conducting experiments on the best technique to achieve a cooling flush of my Bezzera HX machine
Two things needed to be achieved
Most important this technique had to be easily repeatable
Be able to tell the correct amount to cool with visual references
I normally leave my Bezzera on for 18 hours a day
It could be left unused from 1 hour to 5 hours between shots
The cooling flush method that I have come to rely on was
Method
Place and lock PF with basket fitted but without coffee grinds on group head
Place a container under PF spout to catch the scalding water
Turn on to start cooling flush
At the start you will see a bubbling gusher of water with steam escaping
At the middle of the flush water will slow and settle bubbles will diminish
At the last part of the flush the water trickle will resemble a coffee shot being pulled (this is your visual ref)
Stop cooling flush at this point
Times and water amount discharged will change dependent on how long the machine is idle
I then start the grind and tamp procedure and pull the shot as normal
The experiment was conducted using a Synesso filter basket and the standard Bezzera filter basket. I achieved a repeatable technique with visual references with both.
Testers Required
I would like CS members to test this method on there own HX machines to see if this method works for you as well as it did for me, and report back with your findings
Many Thanks [smiley=dankk2.gif]
Koffee Kosmo
In the last month I have been conducting experiments on the best technique to achieve a cooling flush of my Bezzera HX machine
Two things needed to be achieved
Most important this technique had to be easily repeatable
Be able to tell the correct amount to cool with visual references
I normally leave my Bezzera on for 18 hours a day
It could be left unused from 1 hour to 5 hours between shots
The cooling flush method that I have come to rely on was
Method
Place and lock PF with basket fitted but without coffee grinds on group head
Place a container under PF spout to catch the scalding water
Turn on to start cooling flush
At the start you will see a bubbling gusher of water with steam escaping
At the middle of the flush water will slow and settle bubbles will diminish
At the last part of the flush the water trickle will resemble a coffee shot being pulled (this is your visual ref)
Stop cooling flush at this point
Times and water amount discharged will change dependent on how long the machine is idle
I then start the grind and tamp procedure and pull the shot as normal
The experiment was conducted using a Synesso filter basket and the standard Bezzera filter basket. I achieved a repeatable technique with visual references with both.
Testers Required
I would like CS members to test this method on there own HX machines to see if this method works for you as well as it did for me, and report back with your findings
Many Thanks [smiley=dankk2.gif]
Koffee Kosmo
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