Sourdough Water Temperature Chart for a 76 Degree (76°F / 24°C) Kitchen — High-Friction Planetary Mixer (74°F DDT)
4-factor Desired Dough Temperature (DDT) and mixer friction offset (+24°F) for hitting 74°F dough in a 76°F room.
Heat flows in two directions in a 76°F (24.4°C) kitchen: heat flows from the 76°F flour and levain into the dough, and high-friction planetary mixer (74°f ddt) adds +24°F of its own. To land the finished dough on 74°F, the 297g of liquid water must enter at 44°F (6.7°C). Cooling from 72°F tap water down to 44°F means melting 53g of ice into the 350g batch and leaving 297g of liquid water; each gram of ice absorbs 80 cal on melting alone.
- Required Water Temp
- 44°F (6.7°C)To hit 74°F DDT in 76°F room
- 350g Batch Ice Split
- 53g Ice / 297g WBased on 72°F tap water & 80 cal/g latent heat
- Mixer Friction Factor
- +24°FHigh-Friction Planetary Mixer
- Target Final Dough Temp
- 74°F (23.3°C)Locks fermentation clock & protease rate
Crushed Ice & Tap Water Gram Table for 76°F Kitchen (High-Friction Planetary Mixer (74°F DDT))
Sums each row to the batch water weight so the split between ice and liquid always reconciles.
| Water Load | Theoretical Temp | Crushed Ice | Tap Water | Final Dough Temp |
|---|---|---|---|---|
| 250g water (76°F / +24°F) [Primary] | 44°F (6.7°C) | 38g crushed ice | 212g tap water (@ 72°F) | 74°F (23.3°C) final dough |
| 400g water (76°F / +24°F) Small Mix | 44°F (6.7°C) | 61g crushed ice | 339g tap water (@ 72°F) | 74°F (23.3°C) final dough |
| 350g water (76°F / +24°F) Standard Mix | 44°F (6.7°C) | 53g crushed ice | 297g tap water (@ 72°F) | 74°F (23.3°C) final dough |
| 300g water (76°F / +24°F) Oversized Mix | 44°F (6.7°C) | 46g crushed ice | 254g tap water (@ 72°F) | 74°F (23.3°C) final dough |
| 500g water (76°F / +24°F) Double Mix | 44°F (6.7°C) | 76g crushed ice | 424g tap water (@ 72°F) | 74°F (23.3°C) final dough |
Interactive Desired Dough Temp (DDT) & Ice Solver Calculator
Compare your exact mixing bowl dimensions, flour protein percentage, or discard weight in real time.
Offsetting +24°F Mixer Friction in a 76°F (24°C) Kitchen: Target 44°F Water
Heat capacity differences matter at the margin. Flour and water do not absorb thermal energy identically, so the lumped-parameter approach behind the 4-factor DDT equation treats them as a single averaged mass. The practical error is typically within 1°F, which is why probing the finished dough with a probe thermometer is the final check rather than the first.
The recipe's own water temperature is not the mix water temperature. If your recipe specifies water at 90°F because it was written for a 68°F kitchen, that number has to be re-solved for this 76°F (24.4°C) room and for the +24°F that high-friction planetary mixer (74°f ddt) generates.
Thermal Control Protocol for High-Friction Planetary Mixer (74°F DDT) in a 76°F Room
- Weigh the Full Water Load: For a 350g batch you need 297g of liquid water plus 53g of crushed ice. Set the scale up before you touch the flour.
- Chill the Water: Add the 53g of ice to the 72°F tap water and wait until the melt is complete so the temperature is stable when the flour arrives.
- Mix in High-Friction Planetary Mixer (74°F DDT): Combine flour and water, then run the mixer for the full recommended time so the +24°F of mechanical heat is actually generated rather than assumed.
- Confirm 74°F: Probe the finished dough immediately. In a 76 deg F (24.4°C) kitchen the reading should land on 74°F ± 1°F.
Frequently Asked Questions for This Desired Dough Temp (DDT) & Ice Solver Spec
Will the dough temperature change if I scale the recipe?
No. The 4-factor equation is a temperature balance, not a mass balance, so doubling the flour and water keeps the same 44°F target — but you must double the ice too, from 53g to 106g.
Do I need crushed ice or is a cold fridge fine?
Crushed ice, always. Chilling the bowl in the refrigerator removes heat far too slowly for a 350g batch; the 80 cal/g latent heat of fusion in 53g of crushed ice does the job in under a minute.
What water temperature should I use for sourdough in a 76°F kitchen with High-Friction Planetary Mixer (74°F DDT)?
Using High-Friction Planetary Mixer (74°F DDT) (+24°F friction) and targeting a 74°F final dough temperature, your theoretical water temperature is 44°F (6.7°C).