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  • espresso brew temperature & time

    Using Expobar Minora II to pull espresso at home for the last 16 months I noticed some SO and blended beans can still produce good espresso (good aroma, chocolate taste, non bitter) even the pull is upto 50 - 54 seconds, well it took longer than the 25sec because I want to see the dripping effect through the use of the naked portafilter. In fact turning it into latte still taste quite good. So can I say there are beans that can withstand heat better? any comment?

  • #2
    Re: espresso brew temperature & time

    I also have had some beans that work very well with that time, however, I usually aim for 30ml from a double in a 30 sec pour with the time starting from the first drop comming out (after pre infusion).

    I have found some beans (depending on roast profile aswell) that are much better poured with brew temp high (around 96 on the bII) and other beans work better with lower temps (90-92). Generally I start on 96 and move the temp down based on taste.

    The brewtus brew boiler has about a 6 degree temp swing, this translates to a 2 degree swing at the head(according to usergroup data) , so I think you really need to make big adjustments (+-3) to really taste the difference. Ill be PIDing mine as soon as warranty is finished.

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    • #3
      Re: espresso brew temperature & time

      Originally posted by Sink cut link=1227659489/0#1 date=1227684008
      I  also  have had some beans that work very well with that time,  however, I usually  aim for 30ml from a double in a  30 sec pour with the time starting from the first  drop comming out (after pre infusion).

      I have found some beans (depending on  roast profile aswell) that are much better poured with brew temp high (around 96 on the bII) and other beans work better with lower temps (90-92). Generally  I start on 96 and move the temp down based on taste.

      The brewtus brew boiler has about  a 6 degree temp  swing,  this translates to a 2 degree swing at the head(according to usergroup data) , so I think  you really need to make big adjustments (+-3) to really taste the difference. Ill  be PIDing mine as soon  as warranty is finished.

      I didnt know there is a 6 degree temp swing, but I do know there is a water temp different between the head and the hot water wand. I will set the temp to 96 degree for the next pour.

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      • #4
        Re: espresso brew temperature & time

        Originally posted by summercrema link=1227659489/0#2 date=1227739009
        I didnt know there is a 6 degree temp swing, but I do know there is a water temp different between the head and the hot water wand. I will set the temp to 96 degree for the next pour.

        You cant see it from the display as it is programmed never to read above the set temp. You can test it though by watching the brew element cycle (indicated by tiny light in display). :

        Set your temp to 90 and wait until you see brew the element cycles on and off.

        Give it about 15 seconds after turning off and then change your setting to 99.

        You will see that instead of the temp starting to climb up from 90, it will start at 95 or 96 - meaning that when your display was showing 90, the brew boiler temp was actually a lot higher.

        Regardless of this I achieve excellent and consistent shots with the expobar, and can taste an obvious difference when making larger temp adjustments. If your shot is pouring the right time and length, then adjust your temp by raising if its sour, or lowering the temp if it is bitter.

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