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Thread: Oscar boiler temp/press monitoring

  1. #1
    Junior Member
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    Oscar boiler temp/press monitoring

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    hi guys. just bought an oscar for a small cafe we run at church. couldnt justify much more and it was a great price for HX.

    we did give it a good flogging and i came to realise that the boiler was never getting to the right temperature because we were steaming too much. i noticed this because steam power dropped significantly and boiler light was on consistently.

    id love to measure boiler pressure or boiler temp (realising that boiler is managed by pressure-stat not temp). this would enable me to monitor the boiler and adjust usage accordingly.

    ive done a bit of research but theres no where near the info compared to my silvia. perhaps coz it looks like a toaster! :P love to hear suggestions.

  2. #2
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    Re: Oscar boiler temp/press monitoring

    Mikeandkels;

    HZ and single boiler are completely different, in this website you will find information how this machine works and you can compare both.

    http://www.espressomyespresso.com/

    Regards

    Renzo
    Di Bartoli Home Barista Centre

  3. #3
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    Re: Oscar boiler temp/press monitoring

    maybe ive got my understanding wrong ...

    - boiler produces steam (about 1.2bar)
    - inner tubing runs through boiler and heats up water for pouring shots.

    if i bleed too much steam the pressure drops and everything starts falling apart. at 1300W i presume it cant generate steam faster than i bleed it - so i guess i would love to know when my boiler pressure is dropping significantly. i guess ill work it out as time goes on.

  4. #4
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    Re: Oscar boiler temp/press monitoring

    how many coffees you pulling in a row? and what pace

    only one person making coffee, or two? eg one on milk one on shots?

    how much milk you steaming at once?

  5. #5
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    Re: Oscar boiler temp/press monitoring

    pulling a few shots. maybe a pour every minute or two. it was steaming constantly - it was the hot chocolates that were killing me.

  6. #6
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    Re: Oscar boiler temp/press monitoring

    If youre producing drinks at a high rate you might want to consider turning the pstat up. You can get a simple pressure gauge and fitting at a large hardware store and screw that on the end of your steam arm. Open the wand and the gauge will tell you the boiler pressure. You may have to convert whatever format the gauge is in to Bar. From this point you can can simply adjust the pstat up to increase the boiler temp/pressure. This will result in faster recovery time between shots and steaming.

  7. #7
    Junior Member
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    Re: Oscar boiler temp/press monitoring

    interesting...

    would this not effect pouring temp as well? worst case - not pouring a lot then it might burn coffee?

    i like your thinking though



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