Stumptown Hair Bender Espresso (roasted May 23, tested May 30)
coffee dose: 16g
brew ratio: 70-75% (shot volume 40ml, espresso weight 21.5-22.5g)
shot time: ~30 sec after appearance of espresso on bottom of basket
temperature range: 88C-95C (190F-203F) in increments of 1C
ProtocolGrinder: Robur with doser and (full) mini-hopper.
Espresso machine: La Spaziale S1 V1, no preinfusion, blind basket brew pressure 9.25bar, 53mm double basket, bottomless portafilter.
Ground coffee into tared basket and adjusted dose to exactly 16.0g.
Very brief WDT stir with needle, then tamped to ~30#.
Pulled shots into prewarmed shot glass on tared digital scale, stopping at ~40ml/30sec/blonding.
Visually, all pours were good to excellent.
For tasting, sampled straight, then with 1/2t sugar, then with small amounts (1-3oz) of microfoamed milk.
Tasting notes88C
Sour, slightly bitter, but nice balance of flavors.
Drinkable with milk.
89C
Better, but still sour.
Fruitiness is hard to describe: green apples? unripe apricots?
90C
Still slightly sour but an enjoyable, fruity, syrupy shot.
Good with milk.
91C
Sourness gone.
Nice, balanced shot.
Caramel, brown sugar flavors with milk.
92C
Nice, balanced shot. Perhaps the optimal temperature setting on my gear.
Brown sugar flavors with milk.
93C
Still good, both as straight shot and with milk. No bitterness yet.
94C
Still good, especially with milk.
95C
Bitterness is finally emerging.
Still surprisingly drinkable as a sweetened capp.
ConclusionsSome like it hot! Stumptown Hair Bender is drinkable across a wide range of temperature settings, even up to a relatively scorching 95C. I liked it best at 92C.
Perhaps the best descriptor for this blend is balance. There is some fruitiness and acidity, but it doesn't overwhelm the shot. Not much chocolate, but caramel/brown sugar sweetness emerges in milk drinks.
This coffee is denser than most, and responds well to updosing. 16g was not an overdose, even in the 53mm Spaz double basket.
Unlike Black Cat, which is on the wane after a week, Hairbender needs at least that much rest time. I tested it at day 7 post-roast. Hints of acrid undertones suggest that another day or two of rest would be optimal.