MWJB I gave this cup 7/9 (avg for this coffee so far 7.5/9.0 (or 4.3/ 5.0, or 81%)
Coffee bed looked like an Arizona meteorite crater ;-)
Did you get an even extraction all around the coffee bed? I had a similar crater when I brewed the first time.
The coffee bed around the outer circle was hardly extracted. The shower screen massively helped, although the dry bed may not be as flat as one would like. Perhaps, you might want to try using a strainer.
LMSC Did you get an even extraction all around the coffee bed? I had a similar crater when I brewed the first time.
The coffee bed around the outer circle was hardly extracted.
Great question. I have no facility to measure ‘even-ness of extraction’, I don’t know of anybody who does. The coffee tasted as it should, within normal tolerance.
Bear in mind that there is only 15-20s at the end of a 2:40 minute brew where some grounds are not in contact with the water as much as others. How much uneven-ness can this cause. How much unevenness does it take to force a malfunction and how is this identified?
If all the bed was exposed at exactly the same time, how does this ensure even-ness with a cone of coffee grounds?
For years, I bought into the Rao/Perger perception of ‘uneven extractions’…I am now somewhat skeptical (except where you see an abnormally low extraction, with extreme bitterness, but these are easy to avoid & not pursuant to this brew).
Logically, low extractions are always less even.
MWJB More questions than answers. I do not think there is a scientific way of detecting this.
However, first, one may easily observe by leaving the cover open, when the water drips into coffee. I have seen the water does not get evenly distributed all around the coffee. The more the water drips at the centre, the more the coffee gets pushed towards the edges. I do not think these coffee gets extracted as much as the coffee at the centre. I can’t prove.
Second, you may carry out an experiment with a screener to get the water evenly. I use Melitta 9 cup stainless steel filter that sits inside V60. It is not a perfect solution, but it gets water evenly all around the coffee. It made a difference to the cup.
Third, you can measure the EY.
MWJB If all the bed was exposed at exactly the same time, how does this ensure even-ness with a cone of coffee grounds?
If the hot water wets all the coffee, there is only one way the water can seep thru’. It isn’t going to drip thru’ as a plain water. Are you hinting that cone might not create evenness in extraction? If correct, you need a flat (square / rectangular) filter, no? You estimate the yield across the brew mediums; and, I think, the yield along with your subjective score are more than sufficient to suggest an evenness or otherwise.
LMSC Third, you can measure the EY.
The EY of this cup was the highest EY of any brew so far with this coffee. If anything it tasted like extracting a bit less, like half a % (less even-ness) would improve it, in comparison to previous brews. It was a cup I’d be happy to be served - representative, but could do with a tad more clarity.
19.62% 7 - Aromaboy, V60 01, Rombouts paper.
18.26% 7 Hario Switch 02 & Drip Assist, Rombouts #4
18.76% 8 Hand poured Bartleet
18.03% 7 Hand poured Bartleet, 5g less brew water, compared to other 2 Bartleet brews
18.26% 8 Hand poured Bartleet
18.97% 7 Hand poured V60
18.99% 8 Hand poured V60
All hand poured & Drip Assist brews had a flat bed.
MWJB it tasted like extracting a bit less, like half a % (less even-ness) would improve it, in comparison to previous brews.
I think the delicate nature of the coffee is probably the reason. Compared to the other two samples, this blackberry was lightest by comparison even at 12%. It was more like a Gesha variety. I didn’t find a lack of clarity. Certainly, I would also enjoy drinking this lovely coffee again.
Tempted to pick up an Aromaboy, noticed one cheap locally on scumtree, my current brew methods for filter are Aeropress and a V60, used with a temp controlled gooseneck kettle (Fellow Stagg).
What does this little brewer bring to the table? Simplicity?
Tal Sure, simplicity and a less hands on brew, just a case of getting the grind size right for your brew size.
Of course, you still have to weigh the water & coffee in, but I don’t intervene in the brew process in any way.
Also works well with smaller cups (62mm height & under) with various drip cones like V60 01, Kalita Wave, Hario Pegasus 01 & Fellow Stagg X, if you have any of these handy for 1 cup brews.
Honestly, if my gooseneck kettle broke (can’t imagine how this might happen), I wouldn’t buy another solely for making brews up to 330ml of brew water.
Thank you, I think I’ll give it a try!
I still use my Aromaboy every day, usually in the afternoon to save turning my Evo on. At the moment |i have refrained from buying more expensive beans so I do have something still to look forwards to!
Well I’ve been using it every morning before work, as an alternative to the aeropress and I really like the work flow. It’s really simple, I even set it up for my wife to use for when she gets up and she loves it too.
Her aeropress routine frustrates me as she doesn’t time anything or aim to keep anything consistent, no set process etc, I weigh and grind the coffee ready for her during my own morning routine so there isn’t a lot left for her to do. Still doesn’t care enough to time it to ensure it’s the same each day…. Aromaboy solves that though, she should be getting identical coffee each morning now.
Will need more filters soon, Melitta standard 100 brown papers OK?
