What to Expect
This guide will make your feedings, bulk ferment, proofing and baking more predictable by teaching you which temperatures matter and how to measure them reliably.
What you'll learn:
- ✓ Which temperatures to target for starter, dough and oven
- ✓ How temperature changes fermentation speed and flavour
- ✓ Practical measuring techniques that fit a home kitchen
💭 A thermometer won't replace practice, but it removes a lot of guesswork—expect more consistent results once you start measuring temperatures regularly.
🛒 Recommended Products
We recommend the following tools for this recipe:
Instant-Read Thermometer
Quick, accurate readings of starter and dough temperature
Digital Kitchen Scale
Temperature matters, but accurate weight is still essential
Clear Straight-Sided Container
Good vessel for observing starter activity and temperature
Proofing Box
When you want stable temperature control without guesswork
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What You Need
Must have:
Reads quickly (few seconds) and accurately to 0.5°F/0.2°C
⚠️ Buy one — a cheap, slow thermometer leads to bad data → more
Accurate to the gram
⚠️ Must buy — temperature control complements, not replaces, correct formulas
Useful for observing starter rise while measuring temperature
Alternative: Glass jar also works
Nice to have:
- • Proofing box for stable ambient temperature
- • Dutch oven to minimize oven spring variability
Why track temperature?
Warmer dough ferments faster because yeast and bacteria metabolic rates increase; cooler dough slows fermentation and develops different acids and flavours [1].
When you know starting dough temperature and room temperature you can repeat results and adjust hydration mentally for consistent crumb and oven spring [1].
Cold or hot spots, inactive starter, or overproofing become evident when you compare expected and actual temperatures [2].
Ingredients
For: Target temperatures and what they mean
| Starter peak temperature | 75-85°F (24-29°C) | Active, predictable rise for most starters; cooler peaks are slower, warmer accelerate acid production [1] |
| Mix/dough temperature (Desired dough temperature, DDT) | 75-78°F (24-26°C) for everyday loaf | Easier to manage fermentation at this mid-range temperature; adjust for faster/slower schedules |
| Bulk ferment ambient temp | 70-78°F (21-26°C) | Higher end speeds things up and encourages lactic fermentation; lower favours acetic acids and more flavour complexity [2] |
| Final proof temperature | 70-78°F (21-26°C) for room proof; 38-45°F (3-7°C) for retard in refrigerator | Cold retard preserves oven spring while extending flavour development |
| Baking: oven and internal temperature | Preheat to 480°F/250°C; bake until loaf internal temp reaches 205-210°F (96-99°C) | Internal temperature ensures the crumb is set and not gummy |
Step by Step
Measure starter, calculate dough temperature, and confirm internal bake temp.
Measure starter temperature (First check)
Before mixingStir starter and measure with your instant-read thermometer by inserting probe into the center of the starter for 3–5 seconds.
Calculate Desired Dough Temperature (DDT)
Before mixingDDT is the temperature you want the dough to be after mixing. Use this formula conceptually: DDT = (Desired temp × 3) – (starter temp + flour temp + room temp). In practice, aim for dough 75-78°F and adjust water temp accordingly.
Measure dough temperature (after mix)
Insert the probe into the middle of the dough mass for a stable reading. Clean the probe between measurements.
Monitor bulk fermentation
Take temperature readings of dough and ambient air occasionally; note that dough warms slightly due to fermentation heat.
Check final proof
Measure dough temperature right before shaping and again before baking to ensure you didn't overshoot the target. Combine temperature data with the poke test for best accuracy [1].
Bake and confirm internal temp
When the loaf is near expected bake time, insert the instant-read thermometer into the center; target 205-210°F (96-99°C). If below, continue baking and re-check.
Record and iterate
Log starter temp, dough temp, room temp and bake internal temp. Small systematic changes will improve consistency.
What If It Doesn't Work?
Temperature measurements not helping? Common pitfalls and fixes:
Inconsistent readings
Likely: Cheap thermometer or wrong measuring technique
Fix: Buy a reliable [instant-read thermometer](https://amzn.to/49Xsgwp) and insert probe into center of mass; avoid surface readings [1]
Dough too warm and overproofed
Likely: Room too hot or high starter percentage
Fix: Lower water temperature, move to cooler spot, or reduce starter amount; use temperature logs to calibrate [2]
Starter slow despite warm temps
Likely: Weak starter or insufficient feeding schedule
Fix: Feed more frequently and use a [clear straight-sided container](https://amzn.to/3LROhV5) to watch activity; ensure starter isn't dominated by acid bacteria [1]
Crumb gummy even though internal temp reached target
Likely: Probe missed center or loaf needs longer rest before slicing
Fix: Re-check probe technique and always cool for 1–2 hours; confirm internal temp at thickest point
💪 Temperature knowledge quickly pays dividends — it converts guessing into controlled experiments and faster learning.