Sourdough Water Temperature Chart for a 72 Degree (72°F / 22°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 72°F room.
Target a 75°F (23.9°C) dough, account for a 72°F (22.2°C) room plus 72°F flour and levain, then add the +14°F of heat that stand mixer knead 8-min (75°f ddt) generates: 4 × 75°F − (72 + 72 + 72 + 14) = 70°F of mix water. Leave the freezer alone: 350g of liquid water tempered to 70°F gets you to 75°F with zero substitutions.
- Required Water Temp
- 70°F (21.1°C)To hit 75°F DDT in 72°F room
- 350g Batch Ice Split
- 0g Ice / 350g WaterBased on 68°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
DDT Reference for 72°F Kitchens — Stand Mixer Knead 8-Min (75°F DDT) Water & Ice Split
The 14°F friction allowance for stand mixer knead 8-min (75°f ddt) is already inside every target water temperature on this table.
| Recipe Water | Target Water Temp | Ice to Add | Water to Add (@ 68°F) | Dough Temp Achieved |
|---|---|---|---|---|
| Line 250g [Anchor] | required 70°F (21.1°C) | weigh 0g ice | measure 250g liquid | expect 75°F dough |
| Line 400g Quarter Batch | required 70°F (21.1°C) | weigh 0g ice | measure 400g liquid | expect 75°F dough |
| Line 350g Three-Quarter Batch | required 70°F (21.1°C) | weigh 0g ice | measure 350g liquid | expect 75°F dough |
| Line 300g Half Batch | required 70°F (21.1°C) | weigh 0g ice | measure 300g liquid | expect 75°F dough |
| Line 500g Double Batch | required 70°F (21.1°C) | weigh 0g ice | measure 500g liquid | expect 75°F dough |
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Offsetting +14°F Mixer Friction in a 72°F (22°C) Kitchen: Target 70°F Water
The Desired Dough Temperature equation treats the dough as a single thermal mass with four contributions. For this 22.2°C (22.2°C) kitchen, three of them — room, flour and levain — are each 22.2°C, and the fourth is the +14°F that stand mixer knead 8-min (75°f ddt) adds through shear. Solving for the water temperature is the only way to hit 75°F exactly.
Timing the correction is part of the correction. Weight the ice before the flour goes in, and mix ice and flour together first rather than adding ice to a wet dough, because the 80 cal/g latent heat only works if the ice is in contact with the water before the starch starts to hydrate.
Thermal Control Protocol for Stand Mixer Knead 8-Min (75°F DDT) in a 72°F Room
- Start the Night Before: In a 22.2°C (72°F) kitchen the flour will sit near room temperature overnight if you store it sealed, so re-probe it in the morning rather than trusting yesterday's reading.
- Prepare the Water Station: Get the 70°F (21.1°C) water ready before you open the flour bag — once the flour is wet the temperature negotiation is over.
- Blend Water and Flour: Pour 350g of 70°F water over the flour and mix with stand mixer knead 8-min (75°f ddt) to build the 75°F dough.
- Record and Repeat: Note the final probe reading alongside the 22.2°C (72°F) room temperature so the next bake is a copy rather than a calculation.
Technical Q&A: Sourdough Water Temperature Chart for a 72 Degre
How much ice do I add to 350g of bread water in a 22.2°C room (Stand Mixer Knead 8-Min (75°F DDT))?
No ice is needed — use 350g of liquid water tempered to 70°F (21.1°C).
Should I probe the flour and levain separately?
Yes. The equation counts the flour and levain as 72°F each, and in a 72°F (22.2°C) kitchen a levain straight from the refrigerator can be 10°F cooler, which alone will miss the 75°F target.
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 70°F target — but you must double the ice too, from 0g to 0g.