Introduction by Chris Kornman

My colleagues are well aware that dry processed coffees are not my favorite style, so when I dropped a 90 point cup score they joked that this lovely Crown Jewel was, in reality, a 110 point coffee. Regardless of what you might grade it, it’s sure to put a smile on your face: delicate sparkling raspberry and strawberry notes are held aloft by a generous ginger candy and vanilla-like sweetness and the unmistakable aroma and flavor of jasmine ties the experience together effortlessly. It’s really pretty special.

To say that recent history in Ethiopia has seen significant changes to the social and political structure of the country would be an understatement. We’ve seen numerous regional uprisings, the election of Africa’s youngest political leader, opening diplomatic dialogue with Eritrea, and a major overhaul in the way the country’s commodities exchange handles exports and direct trade – and that’s just in the last calendar year!

Kayon Mountain Coffee Farm is itself a relatively new establishment in the Guji region, near the border with Gedeb, in the vast Oromia state. Established by local families who call the town of Shakiso their home, the shareholders are no strangers to the coffee trade, having engaged in the coffee auctions for over thirty years. Kayon Mountain was founded in 2012, and has been venturing into direct exports for three years now. Managed by Ismael Hassen Aredo, the establishment employs 25 full time workers and up to 300 people for seasonal help during the peak of harvest. The farm is about 500 hectares in size – quite large – and is about 50% planted with coffee, the rest being a mix of cabbage, indigenous shade trees, and natural forest.

All three of the Kayon Mountain coffees we purchased this season arrived in exceptional condition, and we elected to highlight this absolutely immaculate natural as a Crown Jewel. While farmers across the globe still practice this method of letting the coffee fruit dry like raisins around the seed, it all started in Ethiopia. It’s still common to see smallholder farmers drying their daily harvest on their porches or lawns across the country. Unlike much of the rest of the world, many of these farmers will then roast and grind their own harvest – Ethiopia is the world’s only major coffee producing country whose volume of consumption equals its export.

Green Analysis by Chris Kornman

Standard fare by some numbers, and a bit of an oddball by others, this dry processed Ethiopia looks pretty classic by screen size (small & widely distributed) and moisture (moderate). However, it defies convention in its water activity – I took additional readings and calibrated my equipment to confirm; it’s unusual in my experience for a coffee reading under 11% in total moisture to achieve a higher than 0.60 water activity, but that’s exactly what we have here. Paired with a surprisingly unimpressive density, this will likely cause the coffee to change color a little more rapidly than expected in the roaster, hit crack at a higher temperature, and possibly respond quickly and favorably to caramelization.

Ethiopia’s genetic diversity of coffee is no secret, but increased attention is being paid to distinguishing cultivars and varieties, thanks in part to the work undertaken by Tim Hill and Getu Bekele. Established in the 1960s, the Jimma Agricultural Research Center was instrumental in selecting, breeding, and distributing scores of cultivars throughout the country in the decades following Haile Selassie’s downfall. These have included region-specific varieties, specialty cultivars, and hybrids and wild selections made for disease resistance.

Ikawa Analysis by Jen Apodaca

Normally I use a profile that is 5 minutes or less with Ethiopian coffees because of their small screen size and high density. Natural Ethiopian coffees have slightly higher water activities and usually have higher first crack temperatures as well. For this reason, I decided to use a slightly longer roast profile that would give the coffee time to reach first crack and have enough time for the post crack development stage of the roast.

In Ikawa Roast (1) we had just 37 seconds of post crack development time. This short time combined with the extended Maillard stage at 57.8% gave this coffee plenty of time for internal development. On the cupping table this coffee was very vibrant and bright with lots of floral characters common to washed Ethiopian coffees. The sweet and clean nature of this coffee really stood out as extraordinary.

To view the roast profiles, you will need to download the IKAWA Pro app from iTunes or Google Play Store, and view the roast profiles on your iPad, iPhone or android devices.

Ikawa Roast (1) 5:15 412 \m/fc LM

Probatino Analysis by Jen Apodaca

Using the Ikawa Roast as a guideline, I knew that this was a very clean and citric coffee with a high first crack temperature. I wanted a shorter roast to highlight the floral acidity of this coffee, but make sure that I roast long enough for a syrupy and sweet notes to develop as well. I started the roast with a lower than normal setting of 367°F and waited some time before I added heat at 2:56. I reached yellowing at 3:26 and turned the heat down soon after to extend the time during the Maillard stage.

First Crack came rather late at 400°F which is 5°F above the average first crack temperature on the 1 kilo Probatino. Like many natural processed coffees, there was little to no “dip”in temperature after first crack, so I reduced heat drastically twice to 2 gas which is my lowest setting. I reached my desired end temperature in 1:14 at 413.9°F. On the cupping table the coffee was just as floral as I remembered and had a sweet cherry and raspberry lemonade that complimented the ginger and jasmine nicely.

Quest Analysis by Evan Gilman

This week I worked with a new thermocouple, extending the probe down through the green coffee chute as an alternative to the suggested MET (Maximum Environmental Temperature) location while I wait for my proper probe to arrive. This is a bare ‘beaded wire’ thermocouple that came with the Mastech MS8217 multimeter I purchased some time ago for personal use. Looking at my results, this gave me a better idea of when to expect crack to begin. My measurements for MET topped out at 180C (356F) for every roast this week, but I believe this number would have been significantly higher with better probe placement. Next week, I’ll be taking a look at BT (Bean Temperature) placement.

Due to some of my previous roasts on the Quests, as well as the green analysis above, I decided to use a lower charge temperature and a very gentle hand while roasting this coffee. For this roast I started with 9.5A power, the back open to stymie airflow, and a charge temperature of 425F. At 2:00 I closed the back of the roaster to start some airflow, and increased fan speed to 3 at 2:30. My turnaround time was a bit later, and at a lower temperature: 380F/2:50.

My lower charge temperature had a more significant effect than I thought it would, and the roast progressed slowly. At 390F/6:00 I dialed back the amperage to 7.5A because my ‘MET’ probe was nearing 175C – right about when crack was starting on my previous roasts. The roast seemingly didn’t have as much momentum as I expected. Crack didn’t start until 11:30, and it was quite shallow. I allowed this coffee to develop for 1:15, and dropped at 440F/12:45. At drop, the ‘MET’ probe read much higher than on my other roasts, at 185C.

Brew Analysis by Sandra Elisa Loofbourow

I was pretty excited to brew this Ethiopia Natural. Using the Phoenix 70 from Saint Anthony Industries, which is taller and narrower than the V60, allowed the coffee to spend more time in contact with the brew water, while SAI’s Perfect Paper Filters produced a super clean cup. The narrow angle of the P70 dripper leads to longer dwell time, and since this coffee has low density and was packed full of flavor, I didn’t want to over extract. With the EK43 on grind setting 9, I started with a 1:16 ratio recipe using 25g of coffee and 400g of brew water. I stirred my 50g bloom dose aggressively for the first 10 seconds – the shape of the P70 can lead to more pockets of untouched coffee in the bloom phase, so be sure to stir thoroughly when using this method. This first brew took a total of 3:51 seconds and tasted of fresh raspberry, plum, jasmine, milk chocolate, and black tea. The mouthfeel was very heavy and viscous, which gave me the impression that this brew had yielded a very high extraction. I was incorrect on that count – the refractometer read a 1.29 TDS with 21.82% extraction, indicating that there was more I could pull out of this coffee.

For the second round, I tightened up the grind setting on the EK 43 to 8.5 while keeping the rest of the recipe static. This produced some heavier fruit notes, like blackberry and maple, but also created a really pleasant syrupy mouthfeel with the clean sweetness of star fruit and sparkling wine. This coffee is incredibly complex, and many of our flavor descriptors were multi-word items, like berry compote, chocolate cake, and balsamic reduction. Spending time exploring these varied and fascinating flavors is a ton of fun, so make sure to run this coffee through several different brew methods and recipes before limiting it to just one.
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