YeastCoast
Fermentation analysis
Shift readout · modeled trace
Status
STABILIZED
Confidence
High(100%)
Comment

Numbers say ~70% apparent attenuation by day 14 (90% on the model) with ambient parked near 10.3°C. That is the boring outcome I want: no heroics, no shortcuts, just gravity doing its job. Still put a hydrometer in it — this is a trace, not a certificate.

Projection · Munich Dunkel

Munich Dunkel

Strain class: lager|Lot ref e77b7c94-cb98-47a1-8188-38dda84824ae
OG (paper)
1.052
FG target
1.012
Atten. spec (sheet)
73.0%
Pitch temp window °F
48–55
8.9–12.8°C
SG vs activity (model — not a replacement for samples)
1.0121.0221.0321.0421.052D01–D14 · SG solid · activity ghost trace (verify on glass)
Day index (scrub timeline)
Day 5 / 14
SG (modeled)
1.037
Activity index
92%
Apparent atten. (calc)
29.0%
Floor note (that day)

SG (model): 1.037 · ~38% of the way to recipe attenuation. Blowoff territory — CO₂ is leaving, heat is building in the cone. This is where temperature discipline actually matters, not where you 'set and forget' the thermostat.

Temp fault register (ambient vs spec)Tamb 10.3°C · Ĥ_wort 10.4°C

Room air sits inside the ±3°C guard band vs the datasheet — no red flags from the cheap thermometer model. Do not confuse that with permission to get lazy on day five.

Under the hood: logistic curve, strain bias, pitch/O₂, stress knocking on kinetics. It is a screen trace — gravity in glass still wins every argument on the brew floor.