July 08, 2024
Dose: 21g
Ratio: 1:16.2
Grind: Finer than Neutral
Brew Time: 3:00
TDS: 1.43%
Extraction: 20%
Sensory Description:
One of the defining characteristics of a well-dialed cup of Tumba Natural is its velvety vanilla-syrup-like texture and body. To accentuate this attribute, I’m recommending a slight up-dose to 21g. At this dose and hitting extraction around 20%, the result is a juicy and sweet cup that reminds me of vanilla, strawberries, apricots, and wild honey. It has a pleasant and mellow berry-like acidity, adding some liveliness to this naturally processed coffee. The overall impression from this coffee, however, is one of fresh fruit and syrupy sweetness.
Dial Notes:
When dialing, I found that a slight up-dose helped accentuate this coffee’s body. At our typical 1:17 ratio, I was able to get pretty clear tasting notes, just without the velvety quality that came through on the cupping table.
Under-extraction came across as thin and tea-like in body, with a lack of sweetness that reminded me of watermelon rind. If you’re not getting the syrup and honey-like sweetness and texture, you likely need a finer grind or a small up-dose.
Over-extraction muted some of the strawberry-like acidity that this coffee is capable of. While maintaining a decent amount of sweetness, it fell a little flat compared to cups at lower extraction percentages. While sweetness and body are what stand out in this coffee, it does have a pleasant acidity that should be easily detectable. If not, you likely need to grind a little coarser.
August 05, 2025
Dose: 20 g
Ratio: 1:17
Grind: Finer than Neutral
Brew Time: 2:55
TDS: 1.40%
Extraction: 20.8%
July 30, 2025
Dose: 20 g
Ratio: 1:17
Grind: Slightly Finer than Neutral
Brew Time: 2:42
TDS: 1.34%
Extraction: 19.8%
July 10, 2025
Dose: 20 g
Ratio: 1:17
Grind: Finer than Neutral
Brew Time: 2:45
TDS: 1.39%
Extraction: 20.6%
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