What Water Temperature Suits Geisha Green Coffee?
Brewing a Costa Rica Finca La Diosa Geisha at 93, 92, 91, and 90 degrees Celsius with all other parameters held steady produced clear differences. The higher-temperature extractions gave a thicker mouthfeel but simpler flavor layers, while the lower temperatures showed more fruity tea character and a refreshing finish.
The Geisha coffe lot arrived as light green, elongated green beans with bergamot and berry aromas; cupping notes list floral, lemon, honey, and fruity tea. At 93 degrees, 15 grams of coffee at a 1:15 ratio, medium-fine grind, finished in 2 minutes with citrus, berries, and oolong tea in the cup. Lower temperatures shifted the balance toward fruit and tea.
Front Street Coffee recently launched a Costa Rica Goddess Estate Geisha. The beans are full of floral aroma, the green beans are light green and elongated, and they smell of bergamot and berries. To investigate the effect of different water temperatures on the flavor of these beans, we brewed at 93°C, 92°C, 91°C, and 90°C respectively, keeping the other parameters consistent. The results showed that the higher-temperature extraction had a thicker mouthfeel and relatively simpler flavor layers, while the lower water temperatures presented a richer fruity tea profile and a refreshing taste. If you are also wondering what water temperature to use for Geisha, take a look at the detailed record of this comparative brewing.
Front Street Coffee recently launched a Costa Rica Goddess Estate Geisha. This bean has a very full floral aroma, and the green beans are rather long with a light green color. Unlike the grassy smell that green beans usually carry, this Goddess Geisha, in addition to the grassy note, also has a fresh aroma of bergamot and berries.
The flavors shown in cupping include floral, lemon, honey, and fruity tea. In the past, when brewing Geisha, I was used to keeping the water temperature between 91-90°C. This time I decided to try a slightly higher water temperature to see what different flavor performance the extracted coffee would bring.
| 93℃| Parameters: 15g coffee; medium-fine grind (BG 5T: 58% passing through China standard No. 20 sieve); coffee-to-water ratio 1:15; brewing method: staged extraction. (Keep the technique as consistent as possible) Bloom with 32g water for 30 seconds, pour until 127g water for the stage, and when the water level drops and is about to expose the coffee bed, continue pouring until 227g to finish. When the water level drops and is about to expose the coffee bed, remove the dripper. (Start timing at the beginning of the bloom) Extraction time is 2’00”. Flavor: citrus, berries, oolong tea, with a noticeable tea sensation in the finish.
| 92℃| Parameters: 15g coffee; medium-fine grind (BG 5T: 58% passing through China standard No. 20 sieve); coffee-to-water ratio 1:15; brewing method: staged extraction. (Keep the technique as consistent as possible) Bloom with 31g water for 30 seconds, pour until 125g water for the stage, and when the water level drops and is about to expose the coffee bed, continue pouring until 225g to finish. When the water level drops and is about to expose the coffee bed, remove the dripper. (Start timing at the beginning of the bloom) Extraction time is 1’59”. Flavor: floral, oolong tea, citrus, plum, cream.
| 91℃| Parameters: 15g coffee; medium-fine grind (BG 5T: 58% passing through China standard No. 20 sieve); coffee-to-water ratio 1:15; brewing method: staged extraction. (Keep the technique as consistent as possible) Bloom with 34g water for 30 seconds, pour in 96g water with a small stream, that is, pour until 130g water for the stage, and when the water level drops and is about to expose the coffee bed, continue pouring until 225g to finish. When the water level drops and is about to expose the coffee bed, remove the dripper. (Start timing at the beginning of the bloom) Extraction time is 1’56”. Flavor: floral, citrus, lemon, oolong tea, with a clear bergamot aftertaste in the finish.
| 90℃| Parameters: 15g coffee; medium-fine grind (BG 5T: 58% passing through China standard No. 20 sieve); coffee-to-water ratio 1:15; brewing method: staged extraction. (Keep the technique as consistent as possible) Bloom with 34g water for 30 seconds, pour until 130g water for the stage, and when the water level drops and is about to expose the coffee bed, continue pouring until 225g to finish. When the water level drops and is about to expose the coffee bed, remove the dripper. (Start timing at the beginning of the bloom) Extraction time is 1’56”. Flavor: overall, the floral note is quite prominent, lemon fruity tea, with citrus, cream, and honey on entry, and a noticeably sweet aftertaste.
| Summary| Today I used four different water temperatures to brew this Goddess Estate Geisha, and the floral and tea notes were both quite prominent. In the 93°C and 92°C groups, the coffee’s flavor layers were relatively simple, but the overall mouthfeel was thicker and more viscous, suitable for drinkers who prefer a heavier body; while the coffee extracted at 91°C and 90°C had richer layers, leaned toward fruity tea, and had a refreshing mouthfeel, making it more suitable for people who like floral notes, clean sweetness, and seek layered variation.
The above content is compiled by CoffeeHunters, a coffee news website.
