--- name: sourdough-starter-manager description: Manage sourdough starters with feeding schedules, hydration calculations, health tracking, and baking preparation. Use when the user wants to maintain a sourdough starter, plan feedings, calculate ratios, troubleshoot starter problems, or prepare for baking. metadata: openclaw: emoji: "🍞" version: "1.0.0" author: "AM" tags: ["baking", "sourdough", "cooking", "food", "fermentation"] requires: bins: [] env: [] config: [] ---

Sourdough Starter Manager

Description

The Sourdough Starter Manager helps bakers maintain healthy, active sourdough starters through intelligent feeding schedules, precise hydration calculations, health monitoring, and baking preparation planning. Whether you're a beginner or experienced baker, this skill ensures your starter stays healthy and ready for any baking project.

Core Capabilities

1. Feeding Schedule Management

• Calculate feeding ratios (starter:flour:water)
• Generate maintenance schedules (daily, weekly, refrigerated)
• Create pre-bake preparation timelines
• Track feeding history and patterns
• Set reminders for upcoming feedings

2. Hydration Calculations

• Calculate current starter hydration percentage
• Convert between different hydration levels (e.g., 100% to 75%)
• Adjust recipes for different starter hydrations
• Calculate flour and water needed for target amounts

3. Health Monitoring & Troubleshooting

• Diagnose common starter problems
• Track rise times and peak activity
• Monitor smell, consistency, and appearance
• Provide recovery protocols for neglected starters
• Identify contamination vs. normal fermentation

4. Baking Preparation

• Calculate starter amounts needed for recipes
• Generate feeding schedules to reach target amounts
• Plan multi-day preparation timelines
• Adjust for room temperature variations
• Optimize timing for specific bake schedules

Usage Examples

Example 1: Daily Maintenance Feeding

User: "I need to feed my starter. I have 50g of starter right now."

Assistant Response:

• Suggests 1:1:1 ratio feeding (50g starter : 50g flour : 50g water)
• Notes this will yield 150g total
• Recommends discarding excess if not baking soon
• Provides timeline: feed now, ready in 4-8 hours at room temp (68-75°F)

Example 2: Pre-Bake Preparation

User: "I want to bake bread on Saturday morning. My recipe needs 200g of active starter."

Assistant Response:

• Calculates backward timeline from Saturday morning
• Suggests feeding schedule: Thursday night and Friday evening
• Provides specific amounts to feed at each stage
• Warns about room temperature considerations
• Offers contingency plan if starter doesn't rise as expected

Example 3: Hydration Conversion

User: "My starter is at 100% hydration but the recipe calls for 75% hydration. How do I convert?"

Assistant Response:

• Explains hydration percentage concept
• Calculates flour/water adjustments needed
• Provides step-by-step conversion process
• Suggests how to maintain a 75% starter vs. one-time conversion
• Notes texture and consistency differences

Example 4: Troubleshooting

User: "My starter smells like nail polish remover and hasn't risen in days."

Assistant Response:

• Identifies likely cause: hooch formation and starvation
• Diagnoses: needs more frequent feeding
• Provides recovery protocol:

1. Pour off liquid (hooch) 2. Discard 75% of starter 3. Feed with 1:2:2 ratio (more food to revive it) 4. Feed every 12 hours for 3-4 days 5. Monitor for sweet-sour smell and doubling

• Sets realistic recovery timeline
• Explains when to discard and start fresh

Example 5: Long-Term Storage

User: "I'm going on vacation for 2 weeks. How do I store my starter?"

Assistant Response:

• Recommends refrigeration method
• Feeding protocol before storage: 1:5:5 ratio (well-fed)
• Storage instructions: airtight container with room to expand
• Revival instructions for return
• Alternative: dehydration method for longer storage
• Notes on starter resilience (can survive months in fridge)

Key Formulas & Calculations

Hydration Percentage

Hydration % = (Water Weight / Flour Weight) × 100

Example:
50g flour + 50g water = 100% hydration
50g flour + 37.5g water = 75% hydration

Feeding Ratio Notation

1:1:1 = 1 part starter : 1 part flour : 1 part water
1:2:2 = 1 part starter : 2 parts flour : 2 parts water

Example with 50g starter:
1:2:2 = 50g starter + 100g flour + 100g water = 250g total

Target Amount Calculation

To get X grams of starter at ratio R:S:F:W

If ratio is 1:2:2 and you need 200g:
- Total parts = 1+2+2 = 5
- Starter needed = 200/5 × 1 = 40g
- Flour needed = 200/5 × 2 = 80g
- Water needed = 200/5 × 2 = 80g

Troubleshooting Guide

Common Issues

Not Rising / Slow Activity

• Likely causes: Too cold, needs more frequent feeding, weak starter
• Solutions: Move to warmer spot (75-80°F), increase feeding frequency, try 1:2:2 ratio

Liquid on Top (Hooch)

• Cause: Starter is hungry and has consumed available food
• Solution: Stir back in or pour off, then feed immediately

Mold Growth

• Identification: Fuzzy colored spots (green, pink, orange)
• Action: Discard entire starter, sanitize container, start fresh
• Prevention: Regular feeding, clean utensils, proper ratios

Acetone/Nail Polish Smell

• Cause: Starvation and alcohol production
• Solution: Feed more frequently with higher flour ratios

No Bubbles After Several Days

• Possible causes: Chlorinated water, non-organic flour, too cold
• Solutions: Use filtered water, try organic flour, increase temperature

Health Indicators

Healthy Starter Signs:

• Doubles in size within 4-8 hours of feeding
• Pleasant sweet-sour smell
• Bubbles throughout
• Passes float test (drop in water and it floats)
• Elastic, stretchy consistency

Unhealthy Starter Signs:

• No rise after 12+ hours
• Offensive smell (not just sour)
• No bubbles
• Watery consistency that doesn't improve
• Colored spots or mold

Storage Methods

Refrigeration (Best for 1-4 week breaks)

1. Feed with 1:5:5 ratio
2. Let rise to peak (4-8 hours)
3. Seal in container with room to expand
4. Refrigerate
5. Can last months with occasional feeding (every 2-4 weeks)

Dehydration (Best for long-term storage)

1. Feed starter and wait until peak rise
2. Spread thin layer on parchment paper
3. Air dry completely (2-3 days) or use dehydrator
4. Break into flakes and store in airtight container
5. Rehydrate with equal parts flour and water

Freezing (Not recommended)

• Can damage yeast and bacterial cultures
• May not revive successfully

Temperature Guidelines

| Temperature | Activity Level | Feeding Frequency | |-------------|----------------|-------------------| | 65-70°F | Slow | Every 24 hours | | 70-75°F | Moderate | Every 12-24 hours | | 75-80°F | Active | Every 8-12 hours | | 80-85°F | Very Active | Every 6-8 hours | | 85°F+ | Too Hot | Risk of bad bacteria |

Baking Preparation Timeline

Same-Day Bake (8-12 hours notice)

• Take refrigerated starter out
• Feed 1:2:2 ratio
• Use when doubled (4-8 hours depending on temp)

Next-Day Bake

• Evening before: Feed refrigerated starter 1:1:1
• Morning of bake: Starter should be at peak, ready to use

Weekend Bake Planning

• Thursday evening: Remove from fridge, feed 1:2:2
• Friday morning: Discard all but 50g, feed 1:2:2
• Friday evening: Check rise, feed 1:1:1 (or according to recipe needs)
• Saturday morning: Use at peak rise

Best Practices

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