---
pageType: source
id: source.psb-gemma-2026-04-29
title: psb-gemma-2026-04-29
sourceType: local-file
sourcePath: /home/topher/.openclaw/workspace-psb-gemma/memory/2026-04-29.md
ingestedAt: 2026-05-03T01:18:32.414Z
updatedAt: 2026-05-03T01:18:32.414Z
status: active
---

# psb-gemma-2026-04-29

## Source
- Type: `local-file`
- Path: `/home/topher/.openclaw/workspace-psb-gemma/memory/2026-04-29.md`
- Bytes: 3822
- Updated: 2026-05-03T01:18:32.414Z

## Content
```text
# 2026-04-29

## 12:02 — TILT Analysis Architecture Discussion

### Topher's Request
Route TILT cron alerts through me (Gemma) for analysis instead of blind notifications directly to PSB group. He's right — the cron scripts are just triggers. I should be doing the analysis autonomously.

### Current State
- Heartbeat: enabled (30m interval)
- GOG access: confirmed working, can pull all 4 spreadsheets
- Cron scripts: running every 6h, sending blind Telegram messages when Days at SG > 5

### Decision
I will do autonomous fermentation monitoring. Cron scripts can be redirected to notify me or become redundant. I pull data, analyze, reply to group.

## 12:16 — Full Fermentation Analysis (On-Demand Pull)

### All 4 Spreadsheets Queried

| Fermenter | Beer | TILT | Current SG | Temp | Days at SG | Status |
|-----------|------|------|------------|------|------------|--------|
| Orange | Seltzer Base-4/26 | Orange | 1.023 | 74.7°F | 0 (jumped) | RESTARTED — heated + nutrient boost worked |
| Pink | 70megOhm | Pink | 1.0133 | 66.4°F | 10.27 | ⚠️ STALLED — 80.9% attenuation, 7.4% ABV |
| Green | HotForTeacher-4-26 | Green | 1.023 | 41.5°F | 19.8 | ❌ OFFLINE — last reading 4/26, now ~3 days silent |
| Black | Adams-CiderAle-4-26 | Black | 1.0182 | 64.7°F | 0 | ✅ ACTIVE — dropping fast, fermentation healthy |

### Detailed Analysis

**Orange (Seltzer Base-4/26)**
- SG 1.023, Temp 74.7°F — fermentation resumed after intervention
- OG was ~1.068 → 1.023 = 73.7% attenuation expected
- Brix dropped 5.4→5.15 during restart — real activity confirmed
- **Verdict:** On watch. Heating + pH boost + nutrients did the job. Monitor for clean finish.

**Pink (70megOhm) — NEEDS ATTENTION**
- SG 1.0133, Temp 66.4°F, Days at SG: **10.27**
- OG: 1.0697 → FG: 1.0133 = **80.9% attenuation, 7.4% ABV**
- Ferm rate: -0.0015/day (very slow)
- Temp avg 67.6°F, acceptable range
- **Issue:** Stuck at 1.0133 for 10+ days. At 80.9% attenuation for a DIPA, this seems light. Typically you'd want 85-88% for a big beer.
- **Possible causes:** Low nitrogen in seltzer base (no grain), pH stress,temp dip to 65.3°F on 4/28 evening
- **Recommendation:** Check pH, consider nutrient addition if packaging soon. At 7.4% ABV it's drinkable but not the 8%+ it might be targeting.

**Green (HotForTeacher-4-26) — TILT OFFLINE**
- Last reading: 4/26/2026 ~07:45 (SG 1.023, 41.5°F)
- Was in cold crash at 41.5°F
- **Issue:** TILT silent for ~3 days. TILT may have lost power or stopped transmitting.
- **Recommendation:** Check TILT battery / power status

**Black (Adams-CiderAle-4-26)**
- SG 1.0182 (dropping), Temp 64.7°F
- Ferm rate: -0.0053/day (healthy active fermentation)
- OG: 1.0614 → current 1.0182 = 70.4% attenuation
- Duration: 7.2 days
- **Verdict:** Healthy active fermentation. Keep monitoring.

### Action Items
- [ ] Pink: Check pH, assess if stalled or just slow finish
- [ ] Green: Verify TILT power/battery
- [x] Orange: Restart successful — monitoring
- [x] Black: Active healthy ferment, no action needed

## 20:45 — Orange pH Correction

**pH reading:** 3.5 (too low — yeast stress range)
**Addition:** 110g potassium bicarbonate (KHCO3)
**Target:** Raise to ~4.0-4.2 for healthy fermentation

**Context:**
- pH 3.5 is below the threshold where Saccharomyces activity slows significantly
- KHCO3 is the right choice — milder than NaHCO3, adds potassium which is more fermentation-friendly
- 110g / 110gal = 1g/gal, which is a reasonable correction rate
- Should see pH recovery within 12-24h, then monitor SG movement

**Expected outcome:**
- pH rises to 4.0-4.3 range
- Fermentation should resume more vigorously
- SG may drop further from 1.023 as fermentation completes

**Follow up:** Next heartbeat — check if SG drops further and if pH has stabilized.
```

## Notes
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