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the different varietals in Africa the gene map Coffea arabica allotetraploidy resulted from recent natural hybridization between the ancestors of present‐day C. canephora (Ca genome donor) and C. eugenioides (Ea genome donor) (Lashermes et al ., 1999) and is probably the result of a single event (Lashermes et al ., 2014). Coffea arabica displays disomic inheritance with bivalent pairing of homologous chromosomes (Krug and Mendes, 1940), which is in accordance with our present observations in mapping experiments of usual disomic patterns of marker inheritance. Yu et al . (2011) provided evidence of recent C. arabica speciation no more than 0.665 million years ago , but also low divergence between the two constitutive subgenomes of C. arabica (Ca and Ea) and those of its progenitor species, demonstrating that the nuclear genomes have remained essentially unaltered since the formation of the hybrid. Using the 17 C. arabica accessions, we took advantage of the fact that

for practical use, 4 to 5 clicks in eg Ditting and EK43, increase the burr gap by 0.2 mm Mahlkoenig GH2: the range is from 0 to 1200 microns(1.2mm), from Turkish to Percolator   just as a rough guide: sieve: For Hario mini hand grinder, the pitch is 1mm, 7 clicks per rotation. It's not easy to find the "zero". here is my settings: espresso:  7 clicks pourover:  13 clicks (1.5 mm) french press: 14 clicks   baratza encore or virtuoso: range: (250 in encore) 200 microns to 1200 microns steps: 40 step size: 25 microns  baratza preciso: 40mm conical range: 200 microns to 1170 microns step size: 100 microns macro(40 steps), 10 microns micro(11 steps), total 440 steps   etzinger / baratza sette 270: 40 mm steel burr, from etzinger. range: 230 microns to 950 microns step size: 100 microns macro(30 steps), 10 microns micro(9 steps, stepless in baratza), total 270 steps rotating: outer burr, instead of inner burr   bar

https://doichaangcoffee.co.th/en/about-us/the-land / catimor 23/5/2020 stay 220c for 2 min to dry out H20 content push to 250c 4 min after 2nd crack 17 % wet loss roast time 10 min roast level color 11 ala sweetmarias to improve:  remove unpleasant rancid aroma. heater underpowered? not fully dehydrated? the long exhaust pipe duct obstructing y the air flow, and actually trapping the gases release during roast? too long after 1st crack? after 2nd crack, 4 min better than 2 min. try longer? or shorter? taste note 12g 165g water 1:30 min pour time med bodied bit sweet nutty v lo acidity clean

all in local hong kong time ( UMT +8) 紫金山天文台    nao jp the maximum eclipse is located in Jugajuchaklata, Nanda devi national park, Uttaranchal, north India ( 30.5 N 79.7 E) As Hong Kong is outiside the annular eclipse zone, bailey beads are not likely be observable online live: hokoon references: timeanddate  google maps from xjubier, click anywhere to get the eclipse timings  wikipedia  hokoon   general circumstances in china cities clouds coverage