Sourdough Water Temperature Chart for a 74 Degree (74°F / 23°C) Kitchen — Stand Mixer Knead 8-Min (75°F DDT)
4-factor Desired Dough Temperature (DDT) and mixer friction offset (+14°F) for hitting 75°F dough in a 74°F room.
Four inputs decide the temperature of your water: the 75°F target dough, a 74°F room, 74°F flour, 74°F levain, and +14°F from stand mixer knead 8-min (75°f ddt). Solve 4 × 75°F − (74 + 74 + 74 + 14) and you land on 64°F (17.8°C) of mix water in this 74°F (23.3°C) kitchen. The faucet supplies 70°F and the dough needs 64°F, so ice is the only route: weigh 12g of crushed ice and 338g of 70°F water for the 350g batch, exploiting 80 cal per gram of phase change.
- Required Water Temp
- 64°F (17.8°C)To hit 75°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
- +14°FStand Mixer Knead 8-Min
- Target Final Dough Temp
- 75°F (23.9°C)Locks fermentation clock & protease rate
Water Temperature Solver: 74°F (23.3°C) Room, Stand Mixer Knead 8-Min (75°F DDT) (+14°F)
Assumes room, flour and levain are all at 74°F (23.3°C) — probe them before trusting the numbers.
| Recipe Water Weight | Required Mix Temp | Crushed Ice Weight | Tap Water (@ 70°F) | Achieved Dough Temp |
|---|---|---|---|---|
| Batch 400g [Exact Target] | target 64°F / 17.8°C | ice 13g | liquid 387g | lands on 75°F |
| Batch 350g Alt Line A | target 64°F / 17.8°C | ice 12g | liquid 338g | lands on 75°F |
| Batch 250g Alt Line B | target 64°F / 17.8°C | ice 8g | liquid 242g | lands on 75°F |
| Batch 500g Alt Line C | target 64°F / 17.8°C | ice 16g | liquid 484g | lands on 75°F |
| Batch 300g Alt Line D | target 64°F / 17.8°C | ice 10g | liquid 290g | lands on 75°F |
Live Parameter Solver for Sourdough Water Temperature Chart for a 74
Dial in custom baker's percentages and export your adjusted 64°F (17.8°C) formula for bake day.
Offsetting +14°F Mixer Friction in a 74°F (23°C) Kitchen: Target 64°F Water
The 75°F (23.9°C) target is a fermentation-speed decision, not a texture preference. A dough that lands at 64°F mix temperature in a 23.3°C (74°F) room will ferment at the rate the microbiology model assumes, and the 14°F friction allowance for stand mixer knead 8-min (75°f ddt) keeps the mixing heat from stealing that budget.
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 23.3°C (23.3°C) room and for the +14°F that stand mixer knead 8-min (75°f ddt) generates.
Thermal Control Protocol for Stand Mixer Knead 8-Min (75°F DDT) in a 74°F Room
- Weigh the Full Water Load: For a 350g batch you need 338g of liquid water plus 12g of crushed ice. Set the scale up before you touch the flour.
- Chill the Water: Add the 12g of ice to the 70°F tap water and wait until the melt is complete so the temperature is stable when the flour arrives.
- Mix in Stand Mixer Knead 8-Min: Combine flour and water, then run the mixer for the full recommended time so the +14°F of mechanical heat is actually generated rather than assumed.
- Confirm 75°F: Probe the finished dough immediately. In a 74°F (23.3°C) kitchen the reading should land on 75°F ± 1°F.
Cereal Chemistry & Bench Execution FAQs
How much colder is the water than the room in this 23.3°C (23.3°C) kitchen?
10°F below the room temperature of 23.3°C. That gap is the entire thermal load that 14°F of stand mixer knead 8-min (75°f ddt) friction and 23.3°C ingredients impose on the mix water.
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.
Does humidity in a 23.3°C (23.3°C) kitchen change the water temperature?
Marginally. On a humid morning the dough surface loses less moisture and cools a little less, so half a degree less cold water is usually right. Treat it as a refinement, not a correction.