Winterizing espresso machine


New member
Oct 27, 2008
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Hi! 8) I have a seasonal shop in N. WI and have always paid to have a \"reputable\" company come out and winterize and then hook up my La Cimbali every year to the tune of $400 plus per visit....Last year was totally disappointing and I feel I am being taken advantage of. After two visits when we opened, machine still needs work that \"they will get to next time they are in the area\" :roll: . I think I could do this myself with some direction. Does anyone know a source/online course that would show me what they don''t cover in the manual???? Any advice is appreciated! :) Thanks!


Active member
Aug 11, 2004
Des Moines, Iowa
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Well I understand your pain but the problem is with wintering any espresso machine is you never truly get all the water out. So even if that water does freeze or if you keep the machine in a heated space will eventually evaporate over time. When that happens it will leave scale deposits. Your Cimbali has a few flow jet restrictors and they are where we see the most problems arising from wintering. It only takes a small amount of water to dry up and plug that .5 - .8 mm hole leading to the group head.

Now you can do your own winterizing of your machine. There are some places who take an air compressor and hook it up to the water inlet and charge the system up to around 90 PSI and blow the water out of the machine. The only problem with this is you have to have the machine on to open up valves to drain all the water. If you want to take the time to disconnect the pump motor this will help increase your pump life. Its not meant to pump air and to top if off running dry can kill a pump PDQ!

I also take mine a step further and remove those jets for the winter. In a M29 Selectron there are 4 jets on a 2 group. 2 @ the group head, 1 @ boiler inlet valve, 1 @ cold/hot water injection valve. Upon removing those after blowing it out will allow any excess water to drain away. That and at the beginning of the new season you'll know that your machine had a PM and should be running like a champ all season long.

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