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Descaling an Isomac Millenium
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Reginald
Senior Member


Joined: 18 Sep 2012
Posts: 1
Location: Muswellbrook Australia
Expertise: I love coffee

Espresso: Isomac Millenium
Grinder: Isomac
Posted Tue Sep 18, 2012, 7:57pm
Subject: Descaling an Isomac Millenium
 

Hi I have just traded my Sunbeam Expresso machine in on an Isomac Millenium, and I was wondering if anyone can tell me the correct way to descale and how often.
The Sunbeam was quite simple just add descaler and let it run until finished, but the Isomac manual is very light on with information about maintenance.
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NobbyR
Senior Member
NobbyR
Joined: 10 Jul 2011
Posts: 1,991
Location: Germany
Expertise: I love coffee

Espresso: Poccino Opus One, Ariete
Grinder: Eureka Mignon Istantaneo
Vac Pot: N/A
Drip: Melitta Linea Unica de Luxe
Roaster: N/A
Posted Wed Sep 19, 2012, 1:06am
Subject: Re: Descaling an Isomac Millenium
 

Here's a step-by-step instruction of how to descale your machine:
  1. Let the machine heat up for 5 minutes.
  2. Remove the cartridge from the filter, if fitted.
  3. Put the descaling agent in the water tank according to instructions given on the bottle or package. Be prepared to tilt the container to prevent the machine from switching off on account of low water levels and take care never to let the pump operate without any water. Therefore, add more descaling solution if necessary. Another alternative is to leave the container full of water and place the hose in a separate jug containing descaling solution. This latter option has the advantage that you can see when enough water has flown through the machine.
  4. Let the water run through the HX line until you can smell the descaling solution.
  5. Let the water run through the steam wand until it begins to smell of descaling agent.
    (Points 4 and 5, when performed in this order, ensure that the pipes of the unit and on the steam wandare filled with descaling solution.)
  6. Insert the blindfilter in the portafilter and insert it into the brew group.
  7. Lift the lever for 6 to 8 seconds, then switch off the machine. This will turn off the pump, given that you do NOT want the unit to lose pressure (make sure that the unit E61 is full of descaling solution).
  8. Leave the machine switched off overnight (approximately 12 hours) then empty out the water tank.
  9. Clean the tank and fill it with clean water.
  10. Depressurise the unit (by lowering the lever).
  11. Turn on the machine and wait a few minutes for it to heat up. Insert the blindfilter and put the portafilter in the brew group, backflush the machine 6 or 7 times.
  12. Remove the portafilter.
  13. Dispense water through the unit for periods of 20 seconds, waiting for 15 seconds between each one. Do this about five times.
  14. Dispense water from the steam wand until you can no longer smell any descaling agent.
  15. dispense water through the unit until you can no longer smell any descaling agent.
  16. Replace the blindfilter and backflush 5 more times.
  17. Switch off the machine;
  18. Fill the tank with clean water and start the machine again as described in the instruction manual.
  19. Pull 30 - 40 cc of water from the brew group into a container and make sure that it does not smell of descaling agent or taste unpleasant. Dispense the same amount of water through the steam nozzle into a container and make sure that it does not smell or taste unpleasant. If any unpleasant smell or taste remains, distribute more water through the unit and steam nozzle and check it again.
  20. The machine is now ready to be used again.

 
***
"This drink of the Satan is so delicious that it would be a shame to leave it to the infidels." (Pope Clement VIII on coffee, when he was urged to ban the beverage)
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