This estate coffee does not conform to the standard Colombian bulk delineations of Supremo or Excelso, possessing a somewhat more varied screen size. Its moisture content looks normal, but the water activity is a little elevated and the density is very high. As far as what this might mean in the roaster, it’s likely that the coffee will require a little less effort to reach first crack than a coffee with similar MC% but lower aW, and it should respond nicely to sugar browning reactions.
This coffee is nice clean coffee that strikes a delicious balance between a citrus and floral acidity with dense chocolate low tones and a heavy mouthfeel. Our first roast, PR-411, was slightly shorter by 28 seconds and had an end temperature that was just 1.3 °F lower than our second roast, PR-412. The differences are minimal towards the end of the roast, but when looking at the two profiles side by side, we can see a diamond shape created just before the Maillard reactions begin. Curiously, the Maillard reactions start at almost exactly the same time in both roasts, but because of the different charge temperatures, additional heat is applied at different times. PR-411 has just a small increase in rate of rise with the increase to three gas and PR-412 has a much more severe incline in comparison because the same amount of heat is applied, but much further on in the roast.
Does this create much difference in flavor? It did not have huge impact and the table was split as to which profile was preferred. Chris enjoyed the clean green apple, honey and orange in PR-411 and I enjoyed the sweet orange, hibiscus, and heavy chocolate in PR-412.
As we tasted this coffee, our opinions were divided straight down the middle; the 7/10 split of coffees, as far as roast preference went. PR-411 boasted clear sugars, seasonally appropriate apple and sweet potato notes, but with a slightly thinner mouthfeel. PR-412 was a bit more showy, with lively citrus notes (blood orange and tangerine) and a touch of floral. Honestly, you won’t go wrong with either; PR-412 was very slightly more soluble, but both of these roasts were quite pleasant.