Sourdough Water Temperature Chart for a 74 Degree (74°F / 23°C) Kitchen — Spiral Mixer (76°F Artisan DDT)
4-factor Desired Dough Temperature (DDT) and mixer friction offset (+18°F) for hitting 76°F dough in a 74°F room.
In a 23.3°C (23.3°C) kitchen (assuming flour and levain are also at 23.3°C) with Spiral Mixer (76°F Artisan DDT) (+18°F mechanical friction), the 4-factor DDT equation [4 × 76°F − (74 + 74 + 74 + 18)] requires a theoretical mix water temperature of 64°F (17.8°C). Because 64°F is colder than 70°F tap water, use the 80 cal/g latent heat of fusion formula: for a 350g water batch, mix 12g of finely crushed ice with 338g of tap water.
- Required Water Temp
- 64°F (17.8°C)To hit 76°F DDT in 74°F room
- 350g Batch Ice Split
- 12g Ice / 338g WBased on 70°F tap water & 80 cal/g latent heat
- Mixer Friction Factor
- +18°FSpiral Mixer
- Target Final Dough Temp
- 76°F (24.4°C)Locks fermentation clock & protease rate
4-Factor DDT Table: 74°F Room, 76°F Target, Spiral Mixer (76°F Artisan DDT)
The 18°F friction allowance for spiral mixer (76°f artisan ddt) is already inside every target water temperature on this table.
| Recipe Water | Target Water Temp | Ice to Add | Water to Add (@ 70°F) | Dough Temp Achieved |
|---|---|---|---|---|
| 400g water (74°F / +18°F) [Anchor] | 64°F (17.8°C) | 13g crushed ice | 387g tap water (@ 70°F) | 76°F (24.4°C) final dough |
| 350g water (74°F / +18°F) Quarter Batch | 64°F (17.8°C) | 12g crushed ice | 338g tap water (@ 70°F) | 76°F (24.4°C) final dough |
| 250g water (74°F / +18°F) Three-Quarter Batch | 64°F (17.8°C) | 8g crushed ice | 242g tap water (@ 70°F) | 76°F (24.4°C) final dough |
| 500g water (74°F / +18°F) Half Batch | 64°F (17.8°C) | 16g crushed ice | 484g tap water (@ 70°F) | 76°F (24.4°C) final dough |
| 300g water (74°F / +18°F) Double Batch | 64°F (17.8°C) | 10g crushed ice | 290g tap water (@ 70°F) | 76°F (24.4°C) final dough |
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Offsetting +18°F Mixer Friction in a 74°F (23°C) Kitchen: Target 64°F Water
Levain temperature is the silent variable in this equation. If the 74°F (23.3°C) kitchen assumption holds for the room and the flour but the levain actually sits two degrees cooler, the finished dough will miss the 76°F target by about half a degree, and in a hot month that is enough to ferment the dough noticeably faster than planned.
Probe the ingredients, not the plan. Room, flour and levain each carry their own temperature in a 23.3°C (23.3°C) kitchen, and the 64°F (17.8°C) figure above assumes all three are at 23.3°C. A 3°F error in the flour alone shifts the finished dough by roughly 1°F.
Thermal Control Protocol for Spiral Mixer (76°F Artisan DDT) in a 74°F Room
- Account for the Friction First: Spiral Mixer (76°F Artisan DDT) adds +18°F, so subtract it from your target before you calculate the water temperature — that single step is what distinguishes a 76°F dough from a warm one.
- Solve the 4-Factor Equation: 4 × 76°F − (74 + 74 + 74 + 18) = 64°F of mix water for this 23.3°C (74°F) room.
- Execute the Ice Swap: Replace 12g of the 350g with finely crushed ice and keep 338g of 70°F tap water, melting the ice fully first.
- Probe the Finished Dough: The reading should be 76°F ± 1°F; anything else means one of the three probed ingredients was off.
Frequently Asked Questions for This Desired Dough Temp (DDT) & Ice Solver Spec
Can I mix the ice directly into the flour?
Yes, and it is often the better technique. Mixing 12g of crushed ice into the 338g of water and flour together chills the mass faster than adding cold water to warm flour, and the 80 cal/g phase change is fully captured.
Should I probe the flour and levain separately?
Yes. The equation counts the flour and levain as 23.3°C each, and in a 23.3°C (23.3°C) kitchen a levain straight from the refrigerator can be 10°F cooler, which alone will miss the 76°F target.
What if my kitchen is warmer than 74°F on the day I bake?
Recalculate rather than adjusting by feel. Every extra degree of room temperature demands roughly one degree less from the mix water, and in a warm room the 64°F figure can drop below freezing, at which point the ice route becomes unavoidable.