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DECAF - Mocha Java

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  • DECAF - Mocha Java

    Tried my first roast of this today and it was so different to any of the other beans I have tried (not too many!) I used the same techniques that I have used for the other beans but did not hear FC. Kept going until 17 mins where I would normally have reached SC and decided to pull as the colour was getting quite dark and I didnt want to over do it. Hardly any chaff was blown out...normally I have it flying around everywhere! Is this normal?

    I tried looking for some roasting tips on this bean in the search box but nothing really came up. Does anybody have some tips?

    Cheers,

    Alistair

  • #2
    Re: DECAF - Mocha Java

    Alistair
    You dont get any chaff from this bean.
    Ideally you should stop the roast at the first snaps of SC or just prior to if you can.
    It will probably take you a few roasts to get used to the fact that the FC sounds are so quiet.

    Good luck with the next one.
    Mal

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    • #3
      Re: DECAF - Mocha Java


      The lack of chaff is because the beans are "water processed", which is pretty much soaked in water to remove the caffeine and then the rest of the coffee is added back again before the bean is dried. The membrane layers on the outside of the bean are removed in the process, ergo no chaff.

      Roasting it can be tricky.

      First crack does happen, often subtle but its there.

      Colour is a bad indicator, the profile that I roast this on at the Snobbery as a brown bean ends-up very dark, looks burnt compared to other beans but they will grind as a much lighter colour and it tastes great.

      Bean temperature is the best indication, but failing that just try and roast it the same as you would any other bean...

      Hmmmm....I just had a thought.
      While I have not tried this, maybe adding half a dozen non-decaf beans would help act as an indicator while roasting?

      Worth a shot as they roast at about the same rate as non-decaf beans.

      Comment


      • #4
        Re: DECAF - Mocha Java

        I have found this to be a really nice decaf bean, but it IS difficult to roast compared to other beans. All I did was to use a roast profile that has been successful with other beans as a starting point, then through a bit of the old trial and error, alter a few things and see what the taste is like at the end of it. If you are able to monitor your roasting temperature, this makes roasting this bean a little easier.

        I must admit that no chaff was a bit of a surprise when I first roasted this bean as well. It makes for a nice change  

        I usually roast about 300g at a time in a Corretto and I can always hear FC (but only just) above all the noise. If you are roasting in smaller amounts perhaps try a bigger load, it may help. I always hate not hearing FC.

        Keep at it, as you wont regret the extra time and effort you put in to get the roast right.

        Comment


        • #5
          Re: DECAF - Mocha Java

          I have recently moved on from a popper to a setup similar to a corretto ... only different: using a Kenwood chef and a heat gun.

          I tried ny first batch of decaf in this, and I also heard no first crack, and didnt stop the roast until second crack had started ~16minutes. It was pretty dark (as I expected from the already dark green beans), and also no chaff.

          A taste-test after cool down was OK but I definately over-roasted this batch. Next time ill try to pull before 2nd crack.

          Cheers

          Greg

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          • #6
            Re: DECAF - Mocha Java

            Thought I might try the beans out tonight and noticed that when I ground the coffee it was very light in colour. Pulled a shot and had a try.....Goodness me I have done this roast very wrong!!! The taste was very bitter, almost salty. Obviously no way near roasted enough. I will give it another go and roast for a bit longer. Hopefully I will be able to hear FC this time.

            Thanks for all the great suggestions. I might try putting a few non-decaf beans in there as Andy suggested and see how it turns out.

            Alistair

            Comment


            • #7
              Re: DECAF - Mocha Java

              Hi Alistair
              You sure you didnt take the roast too far.
              I normally reach FC around 10:00 and then pull the roast just at the first snaps of SC at about 15:00 roughly.

              How much oil is on them, also if you only roasted them today then you ideally need to give them a few days before trying.

              Mal

              Comment


              • #8
                Re: DECAF - Mocha Java

                OK. Just come in after roasting my second batch of this bean. This was a totally different experience. I added some non-decaf beans like Andy suggested and about 11:30 mins in it started FC. Now looking at the roast it was way darker than I would normally have started hearing FC so I think that is what threw me the first time as I lowered the heat when I thought it was getting dark thinking I had missed FC. I now think that I didnt even reach FC with the first roast.

                Comparing the beans side by side my second roast is about CS10 compared to about CS8-9 and the bean has expanded far more than the first roast.

                Mal, I think I may have roasted a little too far. I pulled it just into SC....a few of the beans were showing some oil as I was cooling them. At least I know now!

                Thanks for the help people,
                Alistair

                Comment


                • #9
                  Re: DECAF - Mocha Java

                  Originally posted by 220F0A1017020A1152630 link=1235564749/7#7 date=1235648025
                  I added some non-decaf beans like Andy suggested and about 11:30 mins in it started FC.
                  It sounds like this might be a good tip for others trying to find a decaf indicator.... glad it worked!

                  You are on track now, too early, a little too late (which will be more drinkable than the too early) and next time you will have a better feel for where you are aiming for.

                  Keep plenty of notes and you will be fine!

                  Comment


                  • #10
                    Re: DECAF - Mocha Java

                    Hi picked up my first lot of Decaf M.J on the weekend .
                    Regarding puting non decaf beans in as a Indicator - Reference
                    Has anyone found the closest beans to use for a referance.
                    Obviously some will be closer to others.
                    Will do a bit off exprimenting myself also , would be interesting to find other peoples results.
                    thanks Mick

                    Comment


                    • #11
                      Re: DECAF - Mocha Java

                      Originally posted by 60646E663C39676C650D0 link=1235564749/9#9 date=1241520330
                      Hi picked up my first lot of Decaf M.J on the weekend .
                      Regarding puting non decaf beans in as a Indicator - Reference
                      Has anyone found the closest beans to use for a referance.
                      Obviously some will be closer to others.
                      Will do a bit off exprimenting myself also , would be interesting to find other peoples results.
                      thanks Mick
                      Hi Mick,

                      The MJ is easy to roast. Do as you do, but close your eyes and ignore colour. Dump the beans immediately at the first beans enter second crack...

                      Good luck!

                      2mcm

                      Comment


                      • #12
                        Re: DECAF - Mocha Java

                        Ive totally hit the awesome roast point with these in my Coretto. Beware, lots of info to come.

                        It took three roast attempts, going darker every time to reach the sweet spot. It does roast very differently to most beans, but Ill give you what I can.

                        Roasted to CS12, batch purchased from BeanBay a few months ago. Not oily after roasting to this level (very unusual at CS12). Dont be afraid of taking this bean to CS12.

                        Load: 400g green, 1 1/2 lb Remington breadmaker.
                        Fan: slow fan across top of Coretto pointed at Ozito heat gun.
                        Slow knead: 300*C heat gun, 6 minutes, followed by...
                        Fast knead: 500*C heat gun, pulled at 16:20 minutes total.
                        Days temp: 23*C. Breeze.
                        First crack: no idea.
                        Second crack: first snap at 12:00, next at 12:30, definite by 14:00 slow rolling, pulled at 16:20 rolling smokey.
                        Roast Level: CS12 looks nearly black in sunlight, dark dark brown inside house.
                        Exit load weight at CS12: 340g.
                        Chaff: none.
                        Roasted colour: even tone 90% dark, 10% slightly lighter.
                        Roasted smell: well-done popcorn, not nutty, reminds me of Italian roasters I used to visit in the 80s. Dark, spicey, hint of vegemite  .
                        Roasted bean texture: all easy to snap (if underdone, really hard to snap decaf, need a hammer!)
                        Espresso shot straight after roasting: aroma; freshly cracked eucalyptus leaf. flavour; typical coffee flavour, good, mid-full bodied, good crema for decaf.
                        Milk shot straight after roasting: fabulous. Aroma; freshly cracked eucalyptus leaf, full taste at 25ml shot in long black cups ~25secs.
                        Grind: 5-7 half turns tighter on Macap M4 than non-decaf beans.
                        Shots after a few days rest: continues to be awesome and flavour developing. Crema good.

                        Notes from previous under-done roasts...
                        CS11: colour 2-tone, but 70% darker, 30% lighter, variegated within each bean. Strong nice smell when dark bean snapped, not burned still, easy to snap, some crema on espresso shot, but still sour at CS11 particularly evident in milk. Exit load weight 350g.
                        CS9-10: roasted bean smell mild, not distinctive, bean texture "sproingy" really hard to cut, couldnt snap, but brown inside all the way through, expresso practically no crema, bread flavour, sour, weak, very light when ground, puck ultra-absorbent, could not updose. Exit load weight 365g.

                        Dont say I didnt warn you about TMI! :

                        Comment


                        • #13
                          Re: DECAF - Mocha Java

                          Re-reading previous posts and seeing the time from first snap to batch pull, I suspect that my first crack was actually at 12:00 and sputtered its way through into second with no gap.

                          Comment


                          • #14
                            Re: DECAF - Mocha Java

                            Originally posted by 2A0D17060F0F0A070613170B630 link=1235564749/12#12 date=1242266478
                            Re-reading previous posts and seeing the time from first snap to batch pull, I suspect that my first crack was actually at 12:00 and sputtered its way through into second with no gap.
                            Thats exactly what happened to me this morning. I thought it might have just been the temp of the popper, but maybe not!
                            Thanks for the incredible detail intelli!

                            Comment


                            • #15
                              Re: DECAF - Mocha Java

                              Hi
                              I roasted some Mocha Java Decaf (bought Oct 2007 CoffeeSnobs).
                              Hottop B: 12mins 45 secs; final temp 202 degrees; pulled just on 2nd crack;

                              it tastes sour & grassy, just after roasting. is it too old? or should i just try another profile?

                              Ive only done 10 roasts in my Hottop B so im still learning, and this is my first decaf. I still struggle to recognize 1st & 2nd crack a lot.

                              I have just bought the Decaf WOW, so Ill probably give that a go next weekend.

                              Rose

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